Reimplemented Renderer2D

- Renderer2D now static
- Renderer now calls Init and Deinit of Renderer2D
- Renderer2D  now calls Init and Deinit of FontRenderer
- Fixed Deinit order of Layers and renderer (e.g. Layers now deinit first)
- Sandbox2D now uses SandboxApp (only loads different layer)

GlitchyEngine/src/Renderer/Renderer.bf

@@ -15,7 +15,7 @@ namespace GlitchyEngine.Renderer
 			public Matrix Transform;
 		}
 
-		static GraphicsContext _context ~ _?.ReleaseRef();
+		static internal GraphicsContext _context ~ _?.ReleaseRef();
 
 		//static Buffer<SceneConstants> _sceneConstants ~ _?.ReleaseRef();
 
@@ -39,10 +39,16 @@ namespace GlitchyEngine.Renderer
 			*/
 
 			RenderCommand.Init();
+			Renderer2D.Init();
 
 			InitLineRenderer(effectLibrary);
 		}
 
+		public static void Deinit()
+		{
+			Renderer2D.Deinit();
+		}
+
 		static void InitLineRenderer(EffectLibrary effectLibrary)
 		{
 			LineEffect = effectLibrary.Load("content\\Shaders\\lineShader.hlsl");