New example demonstrating a few possible animations optimizations

[DP News-Robot]

I added a new example showcasing various engine features you can enable to optimize how animations are processed. It is present in examples/animations/optimize_animations_test subdirectory of the engine. Enjoy! Make sure to make a release (not debug) build to experiment with performance. On my system, I can make FPS between 15 and 60 (which is maximum …