INT 62 u - FGDRIVER v4.02 - "FG_GETINDEX" - GET COLOR VALUE FOR COLOR INDEX
	AX = 0045h
	BX = color index (0000h to 00FFh)
Return: AX = color value for specified color index
Notes:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474 at AX=0000h)
	This call returns the value passed to it in text and 256-color
	  graphics modes
SeeAlso: AX=0018h,AX=0040h