* Update MonoGame references to 3.8.2.1105
* Vector2.Rotate is not built into MonoGame
* Update to net8
* Update version number
* Update changelog
* Deprecate Vector2.Rotate for MonoGame only
* Deprecate it but don't error it so API doesn't break for others.
* Make CurrentFrame return the actual frame index from the source atlas
* Start the animation controller playing, don't make the consumer manually call it initially
* Play is automatically called in the controller ctor
* Added property to get name of current animation
* Only copy reference files if user opts in by specifying property in csproj
* Update Kni solution to new project structure
* Update Fna solution to new project structure
* Bump version number to 4.0.0
* Update release workflow
* Remove old test