Add Windows support (#1632)

Adds Windows support.

Co-authored-by: Adam Gleitman <adam.gleitman@gmail.com>
Co-authored-by: REDMOND\agnel <agnel@microsoft.com>

windows/RNSVG/RNSVGModule.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include "JSValue.h"
+#include "NativeModules.h"
+
+using namespace winrt::Microsoft::ReactNative;
+
+namespace winrt::RNSVG
+{
+  REACT_MODULE(RNSVGModule, L"RNSVG")
+  struct RNSVGModule
+  {
+    // See https://microsoft.github.io/react-native-windows/docs/native-modules for details on writing native modules
+
+    REACT_INIT(Initialize)
+    void Initialize(ReactContext const &reactContext) noexcept
+    {
+      m_reactContext = reactContext;
+    }
+
+    REACT_METHOD(sampleMethod)
+    void
+    sampleMethod(std::string stringArgument, int numberArgument, std::function<void(std::string)> &&callback) noexcept
+    {
+      // TODO: Implement some actually useful functionality
+      callback("Received numberArgument: " + std::to_string(numberArgument) + " stringArgument: " + stringArgument);
+    }
+
+   private:
+    ReactContext m_reactContext{nullptr};
+  };
+
+} // namespace winrt::RNSVG