Implement dye color option for teams

[Pablete1234]

Before this PR, team's dye color is always automatically derived from the chat color specified in color, while those conversions are often good enough sometimes they don't allow enough flexibility. Teams may now override that default by setting the dye color directly:

<teams>
  <team id="blue" max="10"  color="blue" dye-color="light blue">Blue</team>
  <team id="red" max="10"  color="dark red" dye-color="pink">Red</team>
</teams>

It affects:

• Control point display regions
• Wool color inside the payload
• Blocks given via kits using team-color="true" (eg: hardened clay, carpet, wool, stained glass...)

It does not affect:

• Armor given with team-color="true" (armor color continues to use chat color, as they're not tied to a list)

Side note: deleted "overhead-color" property on teams, it was undocumented and unused for very long, so it served no purpose whatsoever.

The PR has been tested and works as intended