Brain (Main module)

This is the main module code, including all centralized features such as screen and SD card.

What's included:

• Display: TFT controller with touch support
• CPU: Useful tools for monitoring the CPU, RAM
• I2C: Fancy main I2C polling to get other modules status and data
• LOG: Logging system to write on SD card and Serial
• SD: Fancy asynchronous writing/reading stuff
• SerialInputHandler: For terminal-like work, so you can use it to debug easily
• QR: Yes, QR code generator
• WiFi: DNS, Server & WiFi AP controls

This almost fill all RAM, so changing resolutions or other parameters on defaults.h may break builds.