Optimize var.get_role
Optimize var.get_role

It will now return as soon as it finds the role for the player,
instead of calling var.list_players_and_roles every single time.
I haven't tested in a real-world scenario, but in a test game
with 10000 players (don't ask), the speed improvement is very clear
(~1-2s per player when sending out nighttime PMs instead of ~10s).

billion57/lykos,Agent-Isai/lykos,Cr0wb4r/lykos,Diitto/lykos