Say Hi to Ensembles first alpha

This is the first public alpha release of Ensembles.

Known Issues and incomplete features:

• Style Engine only supports 4/4 time signature styles
• Style Engine player loops a little later than usual after the specific time stamp
• No way to manually change tempo without changing styles
• Style player volume cannot be changed
• Scroll wheel beside the display doesn't work and is still very choppy.
• Menu up, down and activate buttons don't work.
• Arpeggiator and Harmonizer doesn't work
• Reverb and Chorus buttons don't turn off reverb and chorus respectively
• Multipad variables not implemented
• Registration Memory not implemented yet
• Sequencer not implemented yet (Not in scope atm)
• Hold toggle doesn't work
• Keyboard styling isn't final
• No app settings or preferences UI yet
• Style Engine sync may be throw off if the CPU is busy (in flatpak version)