[proposal] Register typescript commands in takeover mode

[zardoy]

The request is to register command IDs listed below so:

1. User don't need to create second keymap for the same commands when takeover mode is enabled
2. Preserve compatibility with other extensions (eg commands.run pipelines)

All in all why don't just do this? The only case I know that can cause warnings is that when builtin typescript extension is enabled after takeover mode was enabled, but we can un-register commands then?

The only command I actually care is only typescript.tsserverRequest for API. I believe it was already discussed hundred of times, but AFAIK this is the only to communicate with TS plugin (pass and receive arbitrary data).

Also ideally handle all commands:

• typescript.findAllFileReferences -> volar.vue.findAllFileReferences
• typescript.goToProjectConfig -> volar.openTsConfig
• typescript.goToSourceDefinition -> ?
• typescript.organizeImports -> ?
• typescript.removeUnusedImports -> ?
• typescript.selectTypeScriptVersion -> volar.selectTypeScriptVersion