MIFOSX-1723: Extend client service to handle images
completed by: Mohammed Nafees
mentors: Markus
Extends the client service to handle images.
This includes:
- Upload an image
- Respect different data types
- Retrieve an image
- Respect different data types
- Update an image
- Respect different data types
- Delete an image
Provide unit tests.
https://mifosforge.jira.com/browse/MIFOSX-1723