Support LSP Document Formatting

[lollipopman]

Use Case

Manually formatting puppet code is time consuming and offers very little gain.

Describe the Solution You Would Like

If puppet-languageserver could format the entire document, that would be awesome!

Describe Alternatives You've Considered

Keep formatting puppet code manually while drinking a🍺 to keep me sane.

[caius-martinus]

I've been able to run puppet-languageserver through Kate, the LSP is well started by Kate but then nothing occur.
"highlightingModeRegex": "^Puppet$"
with --debug=stdout nothing appears in Kate output. When redirected to a file, it shows up the LSP startup but nothing more.
It's like Kate isn't able to connect to the LSP ?