MusicStudio 2

MIDI file reading.
Improve MIDI reading

Improve MIDI reading, separate blocks for each track or merge blocks.
Added a dialog CImportMIDI that allows options to be tweaked before
parsing the MIDI file.
Duration view to tracker view fix

Fixed a small bug when switching between an unedited duration block to
the tracker block view. The tracker block would not have the correct
length set and would not display notes beyond that time.
Typo!
Adding another MIDI file