feat: adding "enemy" capability

[svaningelgem]

This code has been part of Avarion for the better part of 2 years. But as we moved into another plugin, I thought I'd share it with you to improve BT.

[booksaw]

Hi, this looks quite interesting, I may be missing something, but aside from appearing in a different section of /team info and being at "war" is there any functionality which is different between if a team is neutral (not an ally) and an enemy?

This functionality has been requested a lot, but so far I've not found a reason to add it as I can't think of any way to differ the functionality between being neutral and being at war / being an enemy

[svaningelgem]

In our server we had different colored tags for enemy/ally. And I had plugins checking when an ability had to affect someone differently depending on being an enemy, in the same team or being an ally.
So yes, overall it is a really useful addition.

And I agree with you. It's basically a different "state" of ally. But super-useful.