OcclusionQuery renamed to GpuQuery, and added query modes
Fixed OnResourceDestroy callback not called by the destructor
Fixed LightManager crash
Added a lot more texture formats
Fixed crash
Fixed GpuQuery bug

Also added GpuQuery::GetOpenGLID()
Added OpenGL functions

glBlendFuncSeparate
glStencilFuncSeparate
glStencilOpSeparate
Added conditional rendering
Added RendererComparison_NotEqual

Can't figure out why it was missing
Renamed StencilOperation_[Decrement|Increment]ToSaturation

Replaced incorrect "ToSaturation" part by "NoClamp"
Fixed compilation error
Renamed FaceCulling enum to FaceSide
Fixed missing files from previous commit
Made stencil per face side
Texture are no longer associated with a RenderTexture
Fixed RenderTexture warnings
Fixed global header
Forced Backgrounds fragments depth to maximum (1)
Shared ShaderProgramManager flags to both fragment and vertex shaders
Updated Deferred shaders