Vortex Greetings: Related function to Initial Greeting messages.

Functions
const char *	vortex_greetings_get_features ()
	Allows to get current "features" greetings attribute.
const char *	vortex_greetings_get_localize ()
	Return current "localize" greetings optional attribute status.
void	vortex_greetings_set_features (const char *features)
	Allows to set advertised, optional, features attributes while sending greeting element.
void	vortex_greetings_set_localize (const char *localize)
	Allows to set current "localize" greetings attribute.