Currently all outputs go in the user's home project which is undesirable due to the amount of clutter created.

Change this to create a new sub project under <user> / Workflow runs / <Workflow name + date of run> where all outputs are placed by default (unless the user specifies something different). This will be implemented by the client.

arvados-cwl-runner¶

Default behavior

1. search for or create a project named "Workflow runs" owned by the user
2. Create a project under it called <Workflow name + date of run>
3. Use that as project_uuid

Custom parent

1. arvados-cwl-runner --parent "My project xyz"
2. Search for any project visible to the user that has that name (alternately, can also accept a uuid)
   1. If there is a name conflict, report that and instruct the user to use a uuid / fix the project name so it isn't ambigious
3. Create a project under it called <Workflow name + date of run>
4. Use that as project_uuid

If --project-uuid is provided, the behavior is unchanged from current.

If --name was provided, it is used for both the subproject name (instead of name+template) as well as the container request.