Team Color refactor for modding

[CliffracerX]

Implements setPalette() with two variants; either generating a palette from a single color (as the green & blue teams do), or filling one out from three manually provided colors. This doesn't de-Finalize color, palette, or palettei as the setters still work. This refactors the Team constructors to use setPalette as well to avoid code bloat.

This also allows overriding sprites that aren't in the atlas using sprite-overrides, though the warning has been left in to alert people to potential out-of-date mods.

This is realistically only going to matter to a small number of uber-nerds in the community by allowing team color editing in mods. If there's a performant way to alter colors at runtime, that could be cool for scripted maps or similar, but I otherwise expect this to mostly be used for some simple recoloring mods/use in full conversions to freshen things up.

• [ X ] I have read the contribution guidelines.
• [ X ] I have ensured that my code compiles, if applicable.
• [ X ] I have ensured that any new features in this PR function correctly in-game, if applicable.

Proof of testing (and basic mod source code)

Team.all[0].setPalette(Color.valueOf("99aa77")); //derilect
Team.all[1].setPalette(Color.valueOf("aaff00")); //sharded
Team.all[2].setPalette(Color.valueOf("ffaa00")); //crux
Team.all[3].setPalette(Color.valueOf("aa00ff")); //malis
Team.all[4].setPalette(Color.valueOf("00ffaa")); //green
Team.all[5].setPalette(Color.valueOf("00aaff")); //blue
Team.all[6].setPalette(Color.valueOf("ff00aa")); //neoplastic

TODO

Considering mods can auto-pack team regions using the same palette-based system that the base-game sprite packer can, I'm wondering about applying it to base-game sprites, but that goes a bit beyond the scope of this PR.

[way-zer]

It should keep final, as it doesn't block you use Color.set and palette[0] = xxx;.

[way-zer]

Maybe this

[way-zer]

Suggested change

	public final Color[] palette = new Color[3];;
	public final Color[] palette = {new Color(), new Color(), new Color()};

[way-zer]

Suggested change

	palette[0] = color.cpy();
	palette[1] = color.cpy().mul(0.75f);
	palette[2] = color.cpy().mul(0.5f);