[Improve]: Implement IDisposable

[lewpar]

What needs to be improved

Lots of objects need IDisposable interface implemented to handle the disposal of managed (Streams, Memory Buffers, etc..) and unmanaged (Raylib) resources.

Why it needs to be improved

Managed and unmanaged memory needs to be cleaned up to prevent memory leaks and reduce crashes when the engine is terminated.

Additional Information