Multi create/patch/remove performance

[DaddyWarbucks]

When using multi: true, the create method is slow. See: https://discord.com/channels/509848480760725514/1049386346030047293

Solutions

• This line:

  feathers-mongodb/lib/index.js

  Line 219 in c8e894c

  return Promise.all(Object.values(result.insertedIds).map(_id => this.Model.findOne({ _id }, options)));

  should probably use { _id: { $in: [result.insertedIds] } }
• Implement some $returning: false or $limit: 0 to disable Feathers from returning results.

[daffl]

I think this will be addressed via feathersjs/feathers#2945 - closing this issue to archive this repository since it has moved.