Fixes #45948

* Move TS/JS to use organize imports code action

Fixes #47845
Fixes #46647

- Defines a new standard `SourceOrganizeImports` `CodeActionKind` to be used to implement organize imports in a consistent way.
- Add a new `Organize imports` command and keybinding that executes these actions.
- Move over the existing js/ts organize imports command to use the new code action kind

* Use supportedCodeActions context key

* Document code action kind values

* Fix regular expression

Make sure we only match whole scopes and not `unicorn.source.organizeImports`

Fixes #46701

Fixes #46590

* Added pluginPaths configuration option to provide additional plugins discovery locations

* fixed review comments: added array comparison for tsServerPluginPaths, setting made executable

Fixes #46168

* Organize imports for js and ts

Adds a new 'Organize Imports' command for js and ts. This command is only availible on TS 2.8+. We'll hold off on merging this PR until we pick up a TS 2.8 insiders build

Fixes #45108

* Add keybinding for organize imports

Standardizing extension identifiers

TS snippets now live in ts-basics instead of the regular ts extension

Part of #43978

#39778