Version 1.2.1 released!

I released smaller update of the engine, still no time unfortunately for larger changes :-(.

Changelog:

• optimizations in rendering pipeline - FPS improvement on CPU limited systems (basically all systems with modern GPUs)
• added GPU resource pools - should reduce stuttering
• added shadow scene instancing - should increase FPS
• added backend for user content encryption (frontend still needs to be implemented)
• added key to move camera to player position in editor
• added key to reset vehicle orientation
• hovering bounding box in object edit mode