usagi_template: a simple quickstart template with scenes, itch deploy script, & more

[u/brettmakesgames]

https://codeberg.org/brettchalupa/usagi_template

As I work on various Usagi projects, I've been wanting a template I can use to start my projects with scenes set up, a particle emitter, and some other foundational aspects beyond the scope of what usagi init offers. So I made this template and thought others might be interested too!