Exporting the QR code generated as bitmap to be used on SPI TFT display

[tyenhub]

Hi Anunpanya,

 I am currently using your library and would like to upgrade my screen to a 128*128 TFT SPI display. These displays are capable of displaying bitmap so I was wondering if your code can be made to dump out bitmap in a certain memory location of the esp8266 and then remap it to the TFT LCD screen. Really appreciate your great work here. 

I plan to pair up your library with that of
sumotoy/TFT_ILI9163C

Warm Regards,
Terrence