To implement windows-arm64 support, it is needed to add architecture as a subdirectory (https://github.com/flutter/flutter/issues/129805).

In short, when performing a flutter windows build, we have:
- Before: build/windows/runner/Release/gallery.exe
- After: build/windows/x64/runner/Release/gallery.exe

This convention follows what flutter linux build does.

Addresses: https://github.com/flutter/flutter/issues/129805
Addresses: https://github.com/flutter/flutter/issues/116196

Design doc: [flutter.dev/go/windows-arm64](https://flutter.dev/go/windows-arm64)

Part of https://github.com/flutter/flutter/issues/127135

Previously developers had to edit their `Runner.rc` file to update their executable's version information. Now, version information will automatically be set from `flutter build`'s arguments or the `pubspec.yaml` file for new projects. 

Addresses https://github.com/flutter/flutter/issues/73652

Add an integration test that verifies that `flutter build windows` produces the expected executable. In the future, this will be used to test that version information is properly stamped on the executable.

Part of https://github.com/flutter/flutter/issues/73652.