An ImGui-rs renderer for Macroquad

Some future Todo

• Add custom / better buffer allocation strategies. Right now it just starts at a size of 1024 and then grows to the new required size whenever it needs
• Fix / cleanup things that require some upstream changes
• Port to miniquad and make this package use that one, I just needed this for macroquad, but it should be pretty easy to get it working with just miniquad

Credits

The base of this codebase was based on not-fl3/imgui-miniquad-render which was for an older version of both miniquad and imgui-rs. This package is rewritten to support the newer versions with some cleanup, fixes, and additions.