React Native Windows updates (#2206)

Various updates for React Native Windows

**Docs**
* Fixed windows installation in readme
* Added local dev setup instructions

**Build**
* Added VS solutions for RNW 0.61, 0.62, and 0.63+
* Added clang-formatting definition

**Features**
* Fixed autolinking for RNW 0.63+
* Added support for `rate` property

**Examples**
* Upgraded examples/basic to RN 0.61 and replaced broken windows app

examples/basic/windows/VideoPlayer/ReactPackageProvider.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include "winrt/Microsoft.ReactNative.h"
+
+
+
+using namespace winrt::Microsoft::ReactNative;
+
+namespace winrt::VideoPlayer::implementation
+{
+
+    struct ReactPackageProvider : winrt::implements<ReactPackageProvider, IReactPackageProvider>
+    {
+    public: // IReactPackageProvider
+        void CreatePackage(IReactPackageBuilder const &packageBuilder) noexcept;
+    };
+
+} // namespace winrt::VideoPlayer::implementation
+
+