[SFMLRenderer] Added Text Cache;
[Core] Added easier initialization to ConsoleVariable;
[Core] Added new render stats;
[Core] Added missing documentation to Math classes;
[Core] Added ToString to Vector2/3/4;
[Core] Removed some unused, untested functions from Quaternion;
[Core] Hopefully fixed a measure bug on RenderTextUtils;
Merge branch 'master' of https://github.com/LittleCodingFox/Flaming-Torch-Framework