[lib] Expose function that processes operations as a part of SQLite API

Summary:
This allows us to use the API conveniently in lib.

https://linear.app/comm/issue/ENG-6004/wrap-all-store-operations-from-one-action-in-transaction

Depends on D11923

Test Plan: Flow.

Reviewers: kamil, marcin, varun

Reviewed By: kamil, marcin

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D11931