Adds scene management system with GameObjects and Components.
Improves asset loading by scanning assets in a background thread and queuing textures for upload. Also displays a progress bar in the file browser for texture loading.
Adds basic component system with TagComponent to identify GameObjects
by a user defined name.
Adds shader class to core and modifies the renderer to use it,
while also adding profiling macros and fixing resize issues.
The changes ensure the render target is resized only when the
requested size is different from the current size and also clears
the screen to a dark gray color.
Removes Assimp dependency.
Changes the asset loading process to use a queue system for texture uploads to OpenGL, which improves performance by offloading the texture loading to the main thread.
The asset manager now directly loads texture data using stb_image and uploads it to the GPU in the main thread, eliminating the need for Assimp.
