View and manage multiple roles (points of contact) for a component

[gregelin]

Stories

As a component owner, I want to be able set who the POC for handling component requests are so that POC is notified when systems request to use the component.

Discussion

-List of POCs (Point of Contact) widget in Permissions tab who are the POC
-Owner can edit POC-Owner can edit POC

• Note that a party in a role need not be a user in the application
• A party's attributes should align with with OSCAL definition of a Party and Responsible-Party.

Visuals

Acceptance Criteria

• View existing Parties who have the POC for Request role
• Add Party to role
• Remove Party from role

[gregelin]

Completed in PR #233.