Release 3.1.1

What's Changed

New targets!

Portenta X8 [ code will run on the M4 portion of the companion STM32H7 chip ]

Libraries

RPC: various fixes and speedups for X8 compatibility
SocketWrapper: speedup network read() and improve compatibility with existing libraries
Update STM32H7 Bootloader manager sketch

New libraries

MLC: shows how to train and feed LSM6DSOX integrated pattern recognition engine

Full changelog: 3.0.1...3.1.1