INT 16 - HUNTER 16 - REDEFINE KEY SCAN CODES                                    
	AH = 2Bh
	AL = which key table to redefine
	    00h unshifted
	    01h shifted
	    02h Numlock
	BH = standard scan code of key (00h-80h)
	BL = new scan code
Desc:	redefine the generated scan code from BH to BL
SeeAlso: AH=24h,AH=2Ah,AH=2Ch