Based on @brodul work at
https://github.com/brodul/nixpkgs/tree/arduino-update
Desktop file generation is from #13690
- Solved all download problems. Package/library lists are changing
daily, so I've created my own snapshot of them.
- Prepatch jssc .so inside jar - @brodul mentions that it can be copied
into $HOME while running program.
- Removed some unnecessary dependencies
Tested it by uploading simple sketch to Arduino Uno.
