* 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
