- added height field physics shape type
- added support for file drag and drop in the Linux version of the editor
- added light color mask texture support (used by setting MaterialComponent to a light, takes the base color texture slot)
- added CameraComponent render textures that are useable for MaterialComponent basecolor and emissive texture
- RenderPath2D stencil upscaling: compositing stencil sprites with lower resolution RenderPath3D will retain full resolution sprites with upscaled stencil mask
- added simple cross fade functionality to the Application class
- added option to darken the negative axes of the transform tool in the editor