[CommCoreModule] add table and methods for report store

Summary:
Add table for storing reports and all ORM operations needed.

Depends on D7916

Test Plan:

1. Run migration and check if table was created.
2. Logout and check if table was created while creating fresh database.

Reviewers: tomek, michal

Reviewed By: tomek

Subscribers: ashoat, atul

Differential Revision: https://phab.comm.dev/D7918