Merge branch 'master' of https://github.com/strymon/spl
Ignore events that come back from a MIDI thru/merge
Fixed console cut-n-paste capability and removed the code that toggled the console visibility with the ` key.
Fix for 1 byte 3 byte MIDI manufacture ID

Added initializer
Added display when unknown MIDI device is detected. Added another 'setter' for adding sets of supported devices
Updated device detection, added 'show console' menu option`

If more than one device responded to the MIDI id request, depending on
the order
the program would not detected a valid and supported device.

Added a QSet container to keep track of supported devices
Removed some unused definitions
Revert "Removed some unused definitions"

This reverts commit ed567eeb711851380b00cdde359babe8d07fdf51.
Removed some unused definitions