Add patch resource

[yang-ruoxi]

Patch query operators for the user setting resource

• added a patch query operator which accepts any field you want to update in the user setting collection, including a nested field, e.g.:

{"settings.job_role": "researcher", "settings.message_last_read" : $sometime}

• added the patch operator to the user setting resource, with corresponding changes in the Maggma submission resource

• also added another client change corresponding to the server-side change

[munrojm]

Looks good! Once we release maggma and add tests, we can bump the version here to get the tests to pass.

[munrojm]

@yang-ruoxi, I will take care of fixing the remaining tests. Will then merge.

[yang-ruoxi]

thank you @munrojm!