[Suggestion] Split formatter from godot-vscode-plugin

[theXYZT]

This plugin's formatter capabilities are largely abandoned. Most issues related to the formatter are being ignored and related PRs are basically in limbo. It occurs to me that the plugin tries to do two things which should be split into multiple VSCode plugins:

1. Connect to Godot language server, provide basic linting and documentation tooltips, autocomplete, etc (essentially, all functionality that does not edit the user's code).

2. A formatter that follows some arbitrary style guide.

As formatting styles can be fairly opinionated, I don't think this two functions should be married to each other in the same plugin.

[DaelonSuzuka]

Just turn it off or use a different one.