workbenchdev
Add pylsp as the python LSP.
This PR, lays the foundation to introduce an LSP for the python language. Pylsp is packaged as a flatpak module and included in the build tree for the Devel version of Workbench.
Currently, pylsp responds to file input changing, but doesn't publish any diagnostics and I can not figure out why.
It seems to support the same capabilities as the JS client, yet only responds with empty diagnostics on the notification::textDocument/publishDiagnostics event.
Another thing, that raised my attention, is the usage of booth python and python3, when referencing to the language ID throughout the codebase. I don't think it is part of the problem, tho.
Can someone take a look at this and help to figure out, why it does not work?
