Users - Implementing Optimistic Locking

Purpose: Implementing Optimistic Locking in Users.

Description:
Implementation of Optimistic Locking FOLIO wide was ranked very high by the libraries.

Usecases: (Use cases collected by the community)

Not frequent: 2 users editing the same record at the same time

1. User A and User B editing the same record at the same time

More frequent: 1 user and system trying to act on the same record, either individual records or batch
Two automated processes acting on the same record

Technical documentation:
GitHub: https://github.com/folio-org/raml-module-builder/blob/master/README.md#optimistic-locking