[WIP DO NOT MERGE] Autocomplete2 demo

[lerouxb]

This is these branches merged together to do an end to end in progress demo in Mongosh:

• feat: add mongodb-ts-autocomplete package MONGOSH-2034 #520
• feat(autocomplete): add type generator from the php yaml definitions MONGOSH-2030 #521

I have also added the rs, sh and sp globals which I'll have to backport.

TODO:

• Modify shell-api to use the mql types. Then hopefully we can start to autocomplete known collection field names.
• maybe the filtering/sorting of autocompletion results should happen here and not in mongosh. That way we can also make it smarter without breaking interface changes that cross repos.
• also try and add the method comments to the autocomplete result. We probably won't display it in mongosh yet, but we're more likely to in compass.

[kmruiz]

Placeholder placeholderface appeared.

[lerouxb]

I'm gonna just close the WIP PRs - I basically had them so I wouldn't lose track of temp branches.