[FEAT]: Custom Properties (#2933)

* add custom properties model and clients

* observable

* observable tests

* add search

* error CS8370: 'target-typed object creation'

* Error CS8370: 'target-typed object creation'

* add patch with body that return status code

* fixes for failed ConventionTests

* working UnitTests

* (de)serialization and model tests

* Update Repository.cs

Octokit/Http/ApiConnection.cs

@@ -460,6 +460,20 @@ namespace Octokit
             return Connection.Patch(uri);
         }
 
+        /// <summary>
+        /// Updates the API resource at the specified URI.
+        /// </summary>
+        /// <param name="uri">URI of the API resource to patch</param>
+        /// <param name="data">Object that describes the API resource; this will be serialized and used as the request's body</param>
+        /// <returns>A <see cref="Task"/> for the request's execution.</returns>
+        public Task Patch(Uri uri, object data)
+        {
+            Ensure.ArgumentNotNull(uri, nameof(uri));
+            Ensure.ArgumentNotNull(data, nameof(data));
+
+            return Connection.Patch(uri, data);
+        }
+
         /// <summary>
         /// Updates the API resource at the specified URI.
         /// </summary>
@@ -474,6 +488,22 @@ namespace Octokit
             return Connection.Patch(uri, accepts);
         }
 
+        /// <summary>
+        /// Updates the API resource at the specified URI.
+        /// </summary>
+        /// <param name="uri">URI of the API resource to patch</param>
+        /// <param name="data">Object that describes the API resource; this will be serialized and used as the request's body</param>
+        /// <param name="accepts">Accept header to use for the API request</param>
+        /// <returns>A <see cref="Task"/> for the request's execution.</returns>
+        public Task Patch(Uri uri, object data, string accepts)
+        {
+            Ensure.ArgumentNotNull(uri, nameof(uri));
+            Ensure.ArgumentNotNull(data, nameof(data));
+            Ensure.ArgumentNotNull(accepts, nameof(accepts));
+
+            return Connection.Patch(uri, data, accepts);
+        }
+
         /// <summary>
         /// Updates the API resource at the specified URI.
         /// </summary>

Octokit/Http/Connection.cs

@@ -498,6 +498,21 @@ namespace Octokit
             return response.HttpResponse.StatusCode;
         }
 
+        /// <summary>
+        /// Performs an asynchronous HTTP PATCH request.
+        /// </summary>
+        /// <param name="uri">URI endpoint to send request to</param>
+        /// <param name="body">The object to serialize as the body of the request</param>
+        /// <returns><seealso cref="IResponse"/> representing the received HTTP response</returns>
+        public async Task<HttpStatusCode> Patch(Uri uri, object body)
+        {
+            Ensure.ArgumentNotNull(uri, nameof(uri));
+            Ensure.ArgumentNotNull(body, nameof(body));
+
+            var response = await SendData<object>(uri, new HttpMethod("PATCH"), body, null, null, CancellationToken.None).ConfigureAwait(false);
+            return response.HttpResponse.StatusCode;
+        }
+
         /// <summary>
         /// Performs an asynchronous HTTP PATCH request.
         /// </summary>
@@ -513,6 +528,23 @@ namespace Octokit
             return response.HttpResponse.StatusCode;
         }
 
+        /// <summary>
+        /// Performs an asynchronous HTTP PATCH request.
+        /// </summary>
+        /// <param name="uri">URI endpoint to send request to</param>
+        /// <param name="body">The object to serialize as the body of the request</param>
+        /// <param name="accepts">Specifies accept response media type</param>
+        /// <returns><seealso cref="IResponse"/> representing the received HTTP response</returns>
+        public async Task<HttpStatusCode> Patch(Uri uri, object body, string accepts)
+        {
+            Ensure.ArgumentNotNull(uri, nameof(uri));
+            Ensure.ArgumentNotNull(body, nameof(body));
+            Ensure.ArgumentNotNull(accepts, nameof(accepts));
+
+            var response = await SendData<object>(uri, new HttpMethod("PATCH"), body, accepts, null, CancellationToken.None).ConfigureAwait(false);
+            return response.HttpResponse.StatusCode;
+        }
+
         /// <summary>
         /// Performs an asynchronous HTTP PUT request that expects an empty response.
         /// </summary>

Octokit/Http/IApiConnection.cs

@@ -306,6 +306,14 @@ namespace Octokit
         /// <returns>A <see cref="Task"/> for the request's execution.</returns>
         Task Patch(Uri uri);
 
+        /// <summary>
+        /// Updates the API resource at the specified URI.
+        /// </summary>
+        /// <param name="uri">URI of the API resource to patch</param>
+        /// <param name="data">Object that describes the API resource; this will be serialized and used as the request's body</param>
+        /// <returns>A <see cref="Task"/> for the request's execution.</returns>
+        Task Patch(Uri uri, object data);
+
         /// <summary>
         /// Updates the API resource at the specified URI.
         /// </summary>
@@ -314,6 +322,15 @@ namespace Octokit
         /// <returns>A <see cref="Task"/> for the request's execution.</returns>
         Task Patch(Uri uri, string accepts);
 
+        /// <summary>
+        /// Updates the API resource at the specified URI.
+        /// </summary>
+        /// <param name="uri">URI of the API resource to patch</param>
+        /// <param name="data">Object that describes the API resource; this will be serialized and used as the request's body</param>
+        /// <param name="accepts">Accept header to use for the API request</param>
+        /// <returns>A <see cref="Task"/> for the request's execution.</returns>
+        Task Patch(Uri uri, object data, string accepts);
+
         /// <summary>
         /// Updates the API resource at the specified URI.
         /// </summary>

Octokit/Http/IConnection.cs

@@ -117,6 +117,14 @@ namespace Octokit
         /// <returns><seealso cref="IResponse"/> representing the received HTTP response</returns>
         Task<HttpStatusCode> Patch(Uri uri);
 
+        /// <summary>
+        /// Performs an asynchronous HTTP PATCH request.
+        /// </summary>
+        /// <param name="uri">URI endpoint to send request to</param>
+        /// <param name="body">The object to serialize as the body of the request</param>
+        /// <returns><seealso cref="IResponse"/> representing the received HTTP response</returns>
+        Task<HttpStatusCode> Patch(Uri uri, object body);
+
         /// <summary>
         /// Performs an asynchronous HTTP PATCH request.
         /// </summary>
@@ -125,6 +133,15 @@ namespace Octokit
         /// <returns><seealso cref="IResponse"/> representing the received HTTP response</returns>
         Task<HttpStatusCode> Patch(Uri uri, string accepts);
 
+        /// <summary>
+        /// Performs an asynchronous HTTP PATCH request.
+        /// </summary>
+        /// <param name="uri">URI endpoint to send request to</param>
+        /// <param name="body">The object to serialize as the body of the request</param>
+        /// <param name="accepts">Specifies accept response media type</param>
+        /// <returns><seealso cref="IResponse"/> representing the received HTTP response</returns>
+        Task<HttpStatusCode> Patch(Uri uri, object body, string accepts);
+
         /// <summary>
         /// Performs an asynchronous HTTP PATCH request.
         /// Attempts to map the response body to an object of type <typeparamref name="T"/>