Players can now tag other players as friendly

To compensate for the lack of ability to recognize other players.

It basically spawns a red sphere above the player's head to indicate he's friendly. Red probably is the worst color for this but couldn't find anything better within A2:CO.

Doesn't sync with DB at the moment. It would either require a new table or get injected into an other table (i.e. the medical or state table).

Hopefully there's some interest in this. :)