Partial Project update

Created by: rdgoite

Restructured the update endpoint for Projects so that operations can be flagged as partial. Partial updates refer to patching operations that are part of a larger series of updates. For now, partial updates are nothing more than a flagging system with the goal of making notification less noisy. However, in the future, partial updates can be further modified to keep track of update sessions and group together patches that are part of a bigger update transaction. This might be useful for transactional rollbacks, more descriptive notification messages, etc.