Introduce Datastore access facility in MONAILabel tool in MITK.
Datastore is just a folder on the server where data can be kept. Even if empty, it's specified while starting the server.
Datastore should ideally help users to:
- Upload local images to MONAILabel server
- Retrieve those images & view in MITK Workbench.
- Segment selected images on the datastore.
Since the Datastore feature enables users to access images stored (if any) on the MONAI Label server, the MITK-MONAILabel tool should be able to start without any image opened on the workbench.