Gaia Sky 3.5.0-RC10

Bug Fixes

‘cancel download’ catalan and spanish translation texts.
roughness and metallic colors and textures not being set correctly in wavefront loader.

set ‘useColor’ in models to false by default, so that the object color is not passed to the 3D model unless explicitly stated.
remove dpendency on gdx-gltf, implement own modification which directly loads meshes using 32-bit integer indices instead of 16-bit shorts.
rename some classes to make them more concise. Fix and improve javadoc comments.