Refactored for teensy 4.0, xEvi hardware

- Switched to platformio, ino -> cpp
- MPRLS for pressure sensor
- Added basic ICM support
- Removed widi, battery, other features not supported in xEvi
- Removed legacy options/processing
- Added LED strip support
- Added encoder support
- Reworked menu code to use encoders/be more flexible

NuEVI/midi.h

@@ -1,46 +0,0 @@
-#ifndef __MIDI_H
-#define __MIDI_H
-
-//This is a completely made up "European" SysEx manufacturer ID.
-static const char sysex_id[] = { 0x00, 0x3e, 0x7f };
-
-//Enable use of USB and serial MIDI
-#define USE_MIDI_USB
-#define USE_MIDI_SERIAL
-
-//Set / get current midi channel
-void midiSetChannel(uint8_t channel);
-uint8_t midiGetChannel();
-
-void midiSendProgramChange(uint8_t patch);
-void midiSendControlChange(uint8_t ccParam, uint8_t ccValue);
-void midiSendNoteOn(uint8_t note, uint8_t velocity);
-void midiSendNoteOff(uint8_t note);
-void midiSendAfterTouch(uint8_t value);
-void midiSendPitchBend(uint16_t value);
-
-void midiDiscardInput(void);
-void midiReset(); // reset controllers
-void midiPanic(); // turn all notes off
-
-void midiInitialize(uint8_t channel=1);
-
-void dinMIDIsendControlChange(uint8_t ccNumber, uint8_t cc, uint8_t ch);
-void dinMIDIsendNoteOn(uint8_t note, uint8_t vel, uint8_t ch);
-void dinMIDIsendNoteOff(uint8_t note, uint8_t vel, uint8_t ch);
-void dinMIDIsendAfterTouch(uint8_t value, uint8_t ch);
-void dinMIDIsendProgramChange(uint8_t value, uint8_t ch);
-void dinMIDIsendPitchBend(uint16_t pb, uint8_t ch);
-void dinMIDIsendSysex(const uint8_t data[], const uint8_t length);
-
-void sendWLPower(const uint8_t level);
-void sendWLChannel(const uint8_t channel);
-
-
-//Convert things between "regular data" and MIDI data (byte order and 7-bits-per-byte)
-uint16_t convertToMidiValue(const uint16_t realdata);
-uint16_t convertFromMidiValue(const uint16_t mididata);
-uint16_t convertFromMidiValue(const uint8_t* mididata);
-uint32_t convertToMidiCRC(const uint32_t realdata);
-
-#endif