Add support for react-native Windows Cpp/WinRT (#1893)

This also deprecates the old react-native windows implementation

windows/ReactNativeVideoCPP/ReactPackageProvider.h

@@ -0,0 +1,20 @@
+#pragma once
+#include "ReactPackageProvider.g.h"
+
+using namespace winrt::Microsoft::ReactNative;
+
+namespace winrt::ReactNativeVideoCPP::implementation {
+
+struct ReactPackageProvider : ReactPackageProviderT<ReactPackageProvider> {
+  ReactPackageProvider() = default;
+
+  void CreatePackage(IReactPackageBuilder const &packageBuilder) noexcept;
+};
+
+} // namespace winrt::ReactNativeVideoCPP::implementation
+
+namespace winrt::ReactNativeVideoCPP::factory_implementation {
+
+struct ReactPackageProvider : ReactPackageProviderT<ReactPackageProvider, implementation::ReactPackageProvider> {};
+
+} // namespace winrt::ReactNativeVideoCPP::factory_implementation