INT 15 - MultiDOS Plus - TEST RESOURCE SEMAPHORE                                
	AH = 10h
	AL = semaphore number (00h-3Fh)
Return: AH = status
	    00h semaphore not in use
	    01h semaphore owned by another task
	    02h invalid semaphore number
	    03h semaphore owned by caller
SeeAlso: AH=02h"MultiDOS",AH=0Dh"MultiDOS",AH=1Dh"MultiDOS"