Implement group-ownership model for https://hub.docker.com/r/tsotsoslab/

[tkunic]

Background

Currently, all SMILER docker images are hosted at https://hub.docker.com/r/tsotsoslab/ under a single tsotsoslab docker account. This creates issues because there's only one username/password and sharing those credentials is insecure and inconvenient.

It would be ideal to implement some collaboration model where there are multiple administrators who can administer the tsotsoslab account's images and each log in with their own email.

I'm not sure whether this is possible, so this task includes some research.

Acceptance Criteria

Propose a process for administering SMILER images so that all contributors who need access have access, and those who don't, don't. The process should be reviewed and approved by the contributors before this ticket can be closed.