-added new sprites
-added new functions to vectors
-fixed rendering rotated sprites
-small performance improvement and some bug fixes
-added animations support
-bullets get initial velocity from parent
-added partiles for fire from gun and explosion of enemies
-Fixed performance issue with multithreading and rendering
-start making better shaders (by using many macros)
-speed up rendeing when maximum objects count was reached
-remove map rendering form Snake demo, and render entities by themself
-start adding depth and color rendering parameters
-added properly names to jobs (for debugging purpses)
-starts adding multithreaded rendering
-added some math to vectors
-changes execute() to willExecute(). Probably should have different name.
-modified texture atlas
-fixed bug with high CPU usage (use pthread instead of builtin D multithreading)
-added new graphics
-snake now render tile coresponding to body part
-snake is destroyed after collision and emit some particles
-added some functionality to vectors
-fixed documentation issue in Manager.d
