Add a Team parameter to SpawnPoints

[Ghosty]

Since we have built-in Teams, it makes sense to have built-in Team spawnpoints.

Now, it should be relatively simple enough to build a script that does that in the current editor, moving the character to a chosen point after automatically spawning at a default point, so it's not too big of a deal, but it's still something that's an integral part of having teams.

[technoguyx]

As you mentioned, this can be done within 2DW Lua, but I believe it'd be much more efficient to handle this in the Java side, which I suppose handles character spawning right now.