MIFOSX-1721: Extend client service with commands
completed by: Mohammed Nafees
mentors: Markus
Extends the client service with commands.
This includes:
- Activate a Client
- Close a Client
- Assign a Staff
- Unassign a Staff
- Propose a Client Transfer
- Withdraw a Client Transfer
- Reject a Client Transfer
- Accept a Client Transfer
- Propose and Accept a Client Transfer
Provide unit tests.
https://mifosforge.jira.com/browse/MIFOSX-1721