Add new logic and buttons to AnimationWindow for playing backwards and for the new loop types.
Add new methods to control looping: AnimationComponent::IsPingPong, AnimationComponent::IsPlayingOnce, AnimationComponent::SetPingPong, and AnimationComponent::SetPlayOnce.
Add checks in Scene::RunAnimationUpdateSystem for the new loops when the animation reaches the end.
* physics updates, lua bindings
* velocity setters
* fix softbody gravity
* gui things
* colliders cpu and gpu separation
* terrain prop check for missing assets
* lua internal put in function
- editor: quicksave, multiple scenes support, gui changes, additional shortcuts
- physics: improvements for handling multiple scenes, and removal of physics objects
- scripting: ability to override global scene and camera with custom scene and camera from cpp side
- namespace refactor (example: wiGraphics:: -> wi::graphics)
- provided namespace compatibility macro for old user code: WICKEDENGINE_BACKWARDS_COMPATIBILITY_0_59
- resource manager will return `Resource` instead of `shared_ptr<Resource>` objects
- MAD shader optimizations
- implemented alpha to coverage with alpha tested materials when MSAA is enabled
- alpha testing fix with transparent shadow maps
- TLAS and scene buffers will be recreated less frequently when things get added/removed from the scene