PicoSystem
build 32Blit Boilerplate
參考資料：
1. 32blit-sdk
2. 32blit-dots
如下：
$ cd $ git clone https://github.com/Gadgetoid/32blit-dots $ mkdir 32blit-dots/build $ cd 32blit-dots/build $ cmake .. -DCMAKE_TOOLCHAIN_FILE=/opt/32blit-sdk/pico.toolchain -DPICO_BOARD=pimoroni_picosystem $ make -j8