set singular on reaction clients

Octokit.Reactive/Clients/IObservableCommitCommentReactionsClient.cs

@@ -0,0 +1,28 @@
+using System;
+
+namespace Octokit.Reactive
+{
+    public interface IObservableCommitCommentReactionsClient
+    {
+        /// <summary>
+        /// Creates a reaction for an specified Commit Comment
+        /// </summary>
+        /// <remarks>http://developer.github.com/v3/repos/comments/#create-reaction-for-a-commit-comment</remarks>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <param name="number">The comment id</param>
+        /// <param name="reaction">The reaction to create </param>
+        /// <returns></returns>
+        IObservable<Reaction> CreateReaction(string owner, string name, int number, NewReaction reaction);
+
+        /// <summary>
+        /// List reactions for a specified Commit Comment
+        /// </summary>
+        /// <remarks>http://developer.github.com/v3/repos/comments/#list-reactions-for-a-commit-comment</remarks>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <param name="number">The comment id</param>        
+        /// <returns></returns>
+        IObservable<Reaction> GetAll(string owner, string name, int number);
+    }
+}