New Render queues (#161)

* Add new render queues proof of concept + scissoring support (WIP)

* Graphics: Adapt basic sprites rendering to new render queue system

* Graphics: Fix layers when rendering sprites

* Graphics/RenderQueue: Fix sprite default overlay

* Graphics: Enable scissor test by default

* SDK/Widgets: Enable scissoring on widgets

* Graphics: Handle almost everything with the new renderqueues system

Todo:
- Billboard rendering
- Proper model rendering

* Graphics/RenderQueue: Billboard drawing now works (WIP)

At 1/4 of previous code performances due to individually process of billboards

* Add new render queues proof of concept + scissoring support (WIP)

* Graphics: Adapt basic sprites rendering to new render queue system

* Graphics: Fix layers when rendering sprites

* Graphics/RenderQueue: Fix sprite default overlay

* Graphics: Enable scissor test by default

* SDK/Widgets: Enable scissoring on widgets

* Graphics: Handle almost everything with the new renderqueues system

Todo:
- Billboard rendering
- Proper model rendering

* Graphics/RenderQueue: Billboard drawing now works (WIP)

At 1/4 of previous code performances due to individually process of billboards

* Graphics/RenderQueues: Add full support for billboards

* Graphics/RenderQueue: Cleanup and improve billboard rendering

* Graphics/RenderQueue: Fix model drawing

* Examples/Particles: Fix lighting on space station

* Graphics: Cleanup forward render queue/technique

* Fix compilation under Linux

* Graphics/ForwardRenderTechnique: Fix case when scissoring is enabled on material but disabled on element

* Add support for Deferred Shading

* SDK/Widgets: Fix widget rendering

* Graphics: Remove legacy code from render queues

* Graphics: Fix some objects sometimes not showing up due to broken scissor box

* Fix compilation error

* Sdk/GraphicsGraphics: Fix bounding volume

* SDK/World: Fix self-assignation

* Update changelog for render queues

include/Nazara/Graphics/InstancedRenderable.hpp

@@ -37,7 +37,7 @@ namespace Nz
 			InstancedRenderable(InstancedRenderable&& renderable) = delete;
 			virtual ~InstancedRenderable();
 
-			virtual void AddToRenderQueue(AbstractRenderQueue* renderQueue, const InstanceData& instanceData) const = 0;
+			virtual void AddToRenderQueue(AbstractRenderQueue* renderQueue, const InstanceData& instanceData, const Recti& scissorRect) const = 0;
 
 			virtual bool Cull(const Frustumf& frustum, const InstanceData& instanceData) const;