Lfun:	query_aggressive - checking if a monster is aggressive

Synopsis:
	status query_aggressive()

Description:
	Returns if a monster/NPC is aggressive - see also 'man
	monster/set_aggressive'.

Return value:
	1 or 0 if the monster is aggressive or not

Examples:
	status aggr = query_aggressive();

See also: monster/set_aggressive, monster/set_wimpy, living/query_wimpy, monster/set_brave, monster/query_brave