Converting MOD to PT3

Effects:
	MOD					PT3
	~~~					~~~
	F02	Temp				100 Tone up
	C0A	Volume				200 Tone Down
	A20	Vol slide up			300 Portamendo
	400	Vibrato				400 Sample offset
	3FF	Tone Portamendo			500 Ornament offset
						600 Vibrato
						900 Envelope slide up
						A00 Envelope slide down
						B00 Speed

PT3 fields:
	Note
	Sample#
	Envelope Type
	Ornament Number
	Channel Volume

Volume: On AY-3-8910 this is logarithmic

	MOD	PT3
	$40	f
	$35-	e
	$26-	d
	$1b-	c
	$13-	b
	$e-	a
	$9-	9
	$7-	8
	$4	7
	$3	6
	$2	5
	$1	3