LUA EditorAction script to chronologically reverse MIDI notes
of selected MIDI regions, alongside MIDI region positions.
* The positions of the MIDI regions are reversed as well, meaning regions
at the end appear at the beginning and so on.
* Individual notes are reversed so the ending of a note corresponds to its
beginning. Thus notes should be quantized for this effect to yield good
results.
* Note that only MIDI notes are reversed. Other MIDI events such as CC or
SYSEX are left unchanged.
