Updating the desktop air monitor to use try/except for reading the PM2.5 sensor and updating UART MIDI guides to include a timeout in instantiation based on quirk with Metro M7 found by JP
Updating the code for the MIDI display messages example in the MIDI for Makers guide
updating display height, x coord for text and added a comment for new board.STEMMA_I2C() option in CP 7.2
Adding six examples for the MIDI for Makers guide. Three MIDI out (basic keyboard, BLE sequencer, CC pots) and three MIDI in (UART to USB, display MIDI messages and control motors).
