Create filtering function based on licenses and restrictions

[pbuttigieg]

All CreativeWork patterns and their derivatives have a license property that can and should be leveraged for filtering.

• [ ] Coordinate with ODIS-Arch developers to make best use of the license field.
• [ ] Coordinate with any CDIF progress on the issue.

xref: https://github.com/Cross-Domain-Interoperability-Framework/licenses-and-restrictions/issues/1