Zelia from teaching myself godot

Ok, so the day 5 tutorial is half-way now. In the mean time, I've built some .exe files to preview your tutorial progress in Godot 4.1.1's version of Zelia...

...also... seems like I'm going to have to scout a new migration guide soon! 4.1.2-stable sounds like something I want to get in on!

https://github.com/godotengine/godot/releases

After a 14 day research stint I'm now finally ready to start writing day 5.

Topics for day 5 will be:
- Make a bouncing Slime monster

- Add the tree-trunk terrain

- Make tiles Zelia can break

- Allow those breakable tiles to fall down

- Reuse tiles as background scenery

- Review my failed attempt to replace my TextureRenditions singleton with shaders

Spoiler warning: there will be some Godot 4.1 recipes for dynamic tiles in here I could not find on the web -- give me a weekend to write them out..

Any feedback on day 1 thru 4 is more than welcome of course!
https://github.com/Teaching-myself-Godot/rewriting-zelia-tutorial/tree/main#learning-godot-by-rewriting-zelia