Name: add_verb - add a verb triggered to a function

Synopsis:
	void add_verb(string str)

Note:
	This function is OBSOLETE as the verb can be given directly with
	add_action(). add_verb remains just for compatibility and will
	probably become a simulated efun some day.

Description:
	This function is connected to the add_action efun. It will set up
	the command "str" to trigger a call to the function set up by the
	previous call to add_action.

Return value: none

Examples: none

See also: efun/add_action, efun/query_verb, efun/add_xverb