Work at 3ds support and backend upgrades

- Track textures (not sure if this is done tbh)
- Add lithium formatters and move TextureID, TextureFormat and TextureFilter to lithium
- Only include gl-helper if any glDriver is included
- Add Li::Rect for UV stuff
- Add Li::Texture as Info holder (still thinking of making them to ptrs
- Add Check if textures are still loaded on exit

backends/source/gl-helper.cpp

@@ -1,3 +1,4 @@
+#if defined(PD_ENABLE_OPENGL2) || defined(PD_ENABLE_OPENGL3)
 #include <glad/glad.h>
 
 #include <iostream>
@@ -43,4 +44,5 @@ u32 CreateShaderProgram(const char* vert, const char* frag) {
 
   return shaderProgram;
 }
-}  // namespace PD
+}  // namespace PD
+#endif