Feat/favorites api

[cbeach47]

Checklist

• the individual contributor license agreement is signed
• commit message follows commit guidelines
• tests are included

Description of change

Build out of the portlet-list API endpoint feature.

Tests to support this feature is in uPortal-Project/uPortal-start#575

Future efforts:

• Setup the portlet-list portlet entries to be a foreign key constraint on portlet definition fnames.
• Include 'details' parameter in portlet-list retrieval to inflate portlets (removes the need for a second API call)
• Paginate retrieval of all portlet-lists
• Gradle task to migrate old favorites to portlet list favorites

[cbeach47]

I don't expect the overall structure to change - possibly tweaks as I finish out the integration tests.

[cbeach47]

hardened the logging messages as per Sonatype. I think the rest are OK to ignore for now, basic logging of exceptions / stack traces, or existing issues.

[bjagg]

For expediency, I am going to merge and then remove the duplicate class in a new PR.