Add/Remove language server definition when plugin is installed/unistalled

[angelozerr]

Today LSP console is refreshed when User defined language server is created/ deleted.

It should be nice to have this same support when a plugin defines language server definition from extensions point (ex : IJ Quarkus) and it is installed/uninstalled.

The main idea is to add a ExtensionPointListener implementation and track if the installed / unistalled plugin declares some language server definition to add/deleted them from LSP console.

@MituuZ do you want to work on this issue?

[fbricon]

This is low low priority though

[angelozerr]

This is low low priority though

Indeed as I'm very busy with another taks, I wonder if @MituuZ could have time to work on it, I think it will bring a more professional plugin if we could have this feature andI think it is not an hard task since we have already all liteners which does that.

[MituuZ]

I can take a look after the exports