Furnace v0.5.6 (beta) - custom keybinds

this release brings the following features/fixes:

• custom keybinds! including more keybinds such as selecting windows and stuff
• FM envelope and algorithm preview!
• custom font loading!
• status bar improvements (now it displays a description about the currently highlighted effect and other stuff)
• previous/next pattern is now displayed
• add an UI scale setting
• add two compatibility flags for pre-0.5.5 songs
• improvements to sample editor documentation (thanks @nicco1690!)
• Game Boy: fix wave orientation being wrong
• add a little visualization to channel names
• rename Neo Geo to Neo Geo CD (since it doesn't support ADPCM-B)
• make row hex number uppercase
• fix a possible crash in the debug menu when it is too small
• fix several build issues
  • MSVC build failing on non-Latin machines
  • macOS build failing
• add deep clone order action
• a few more demo songs courtesy of @0x5066
• Amiga: early bus limits emulation
• fix paste not pasting release notes
• fix MML string not clearing release point
• LFO shape macro now displays shape names when hovered
• Master System: fix channel 3 being muted at the beginning of a song
• Master System: fix "disable phase reset" not working in preset frequency noise mode
• fix metronome freaking out under specific circumstances
• add SAASound SAA1099 core
• add an option to select audio device
• fix BPM view not considering time base
• Amiga: fix samples retriggering when changing order
• fix note cut sometimes occurring after changing order
• scroll horizontally when moving the cursor
• fix division by zero in some cases
• accept number pad keys for value input
• suffix with 00 instead of 0 in file export
• add stop song effect

again, thanks everyone for your feedback!