Integrate just lsp?

[nefrob]

Ref: https://github.com/terror/just-lsp.

[iloveitaly]

Woudl love this as well! Looks like someone attempting to do this here https://github.com/terror/just-lsp

[nefrob]

Added basic support in latest release: https://github.com/nefrob/vscode-just/releases/tag/0.9.0.