feat(windows): add fabric support (#2321)

# Summary
This PR adds Fabric support and a FabricExample app for Windows.

Windows support for Fabric is experimental and as such APIs are subject
to change/break.

## Test Plan


https://github.com/software-mansion/react-native-svg/assets/1422161/2a7db119-44a8-4ee1-a837-41ca8320d8fa

## Compatibility

| OS      | Implemented |
| ------- | :---------: |
| iOS     |    ❌     |
| Android |    ❌     |
| Windows |    ✅     |

## Checklist
- [x] I have tested this on a device and a simulator
- [ ] I added documentation in `README.md`
- [ ] I updated the typed files (typescript)
- [ ] I added a test for the API in the `__tests__` folder

windows/RNSVG/DefsView.cpp

@@ -1,9 +1,37 @@
 #include "pch.h"
 #include "DefsView.h"
+#if __has_include("DefsView.g.cpp")
 #include "DefsView.g.cpp"
+#endif
 
 using namespace winrt;
 
 namespace winrt::RNSVG::implementation {
+
+#ifdef USE_FABRIC
+DefsProps::DefsProps(const winrt::Microsoft::ReactNative::ViewProps &props) : base_type(props) {}
+
+void DefsProps::SetProp(
+    uint32_t hash,
+    winrt::hstring propName,
+    winrt::Microsoft::ReactNative::IJSValueReader value) noexcept {
+  winrt::Microsoft::ReactNative::ReadProp(hash, propName, value, *this);
+}
+
+DefsView::DefsView(const winrt::Microsoft::ReactNative::CreateComponentViewArgs &args) : base_type(args) {}
+
+void DefsView::RegisterComponent(const winrt::Microsoft::ReactNative::IReactPackageBuilderFabric &builder) noexcept {
+  builder.AddViewComponent(
+      L"RNSVGDefs", [](winrt::Microsoft::ReactNative::IReactViewComponentBuilder const &builder) noexcept {
+        builder.SetCreateProps([](winrt::Microsoft::ReactNative::ViewProps props) noexcept {
+          return winrt::make<winrt::RNSVG::implementation::DefsProps>(props);
+        });
+        builder.SetCreateComponentView([](const winrt::Microsoft::ReactNative::CreateComponentViewArgs &args) noexcept {
+          return winrt::make<winrt::RNSVG::implementation::DefsView>(args);
+        });
+      });
+}
+#endif
+
 void DefsView::Draw(RNSVG::D2DDeviceContext const& /*deviceContext*/, Size const & /*size*/) {}
 } // namespace winrt::RNSVG::implementation