Abstract renderers implemented.
Uniform buffer object added
Model deferred rendering
Shader preprocessor, icosphere generator added.
Deferred shading framework (directional, and point lights) added.
Icosphere normal & texture coordinates calculation added.
Deferred shading fully implemented.
Deferred renderer framebuffer resizing implemented.
Point light bounding sphere calculation fixed.
Light managing revamped.
Transformable interface implemented.
Point light managing added to the world editor.
Fixed several editor bugs