Add Programmer Dvorak

[Ssamm45]

I know you have normal dvorak but not programmer dvorak which is what I generally use on my pc. It would be great if this layout was added to the keyboard.

I will probably work on this myself once I get the time unless someone else.

https://www.kaufmann.no/roland/dvorak/

[spff]

I'm working on it and it's almost done.

[spff]

It's done! I've sent a pull request

[TPS]

@spff did via #598