Arvados

Workbench is now at a point where if Container implements the Work Unit interface, display should work automatically.

To get the children of a Container Request, get the Container that is satisfying the Container Request, then list all Container Requests where [["requesting_container_uuid", "=", satisfying_container_uuid]]. See the Container Request schema for more details.

8650-container-work-unit branch is very small update based on 8876 branch. The container_work_unit -> children method is mostly what needs to be reviewed. Thanks.