Big Graphics update

Separated LightManager
Added Sprite class
Added View class
Camera is no longer a SceneNode
Fixed Material not invalidating programs
Renamed CameraPosition uniform to EyePosition
Renamed VisibilityTest to FrustumCull


Former-commit-id: ff7fbe4d9b31a3c269baab0b48c6faa347a12161

src/Nazara/Graphics/SceneRoot.cpp

@@ -31,6 +31,13 @@ nzSceneNodeType NzSceneRoot::GetSceneNodeType() const
 	return nzSceneNodeType_Root;
 }
 
+bool NzSceneRoot::FrustumCull(const NzFrustumf& frustum)
+{
+	NazaraUnused(frustum);
+
+	return true; // Toujours visible
+}
+
 void NzSceneRoot::Register()
 {
 	NazaraInternalError("SceneNode::Register() called on SceneRoot");
@@ -40,10 +47,3 @@ void NzSceneRoot::Unregister()
 {
 	NazaraInternalError("SceneNode::Unregister() called on SceneRoot");
 }
-
-bool NzSceneRoot::VisibilityTest(const NzCamera* camera)
-{
-	NazaraUnused(camera);
-
-	return true; // Toujours visible
-}