A tft addin for pbp3

[richard]

forgot to add

doVdline doHdline

x= 196
y= 34
TFT_j= 312
gosub doHdline

will draw a dashed horizontal line from x=196 to 312 at y =34
and a update to the flash add in

x= 256
y= 11
TFT_k= 105
gosub doVdline

bit clunky to use I might add another couple of user commands