ILI9341 SPI TFT Display/Raspberry Pi Pico Example

Demonstration code for using a Raspberry Pi Pico with common TFT SPI boards.

Before building, you must fetch the git submodules.

git submodule init
git submodule update

I have it set up with the pin-out of the version that comes on a cheap Pico Breadboard Kit.

I used Vlad Tomoiagă's library. It requires LCD_setPins(15, 13, 14, 6, 7).

For LCD_setRotation assuming the top of the screen is the top of the board,