Basic AI, Players, Commands, Hostile & Friendly

New Commands:
-Attack To Location - Move to a location while looking for targets to
attack
New AI Scripts:
-Aggro - Automatically attack enemy units within range if not carrying
out other orders.
-Self Preservation - If a unit is attacked, it commits an attack to
order at its attacker's location
-Call of Help - When a unit is attacked it asks nearby units  for help
provided they do not already have orders.