Expand info-endpoint with info from copyright endpoint

[tmkarlsen]

1. Make sure that all data from copyright endpoint is also reported from the info-endpoint
2. All fields should always be displayed and fields without data should respond with null

https://h5p.ndla.no/swagger-ui.html#/resource-copyright-info-controller

Info endpoint:

• title
• published
• language
• h5pLibrary
  • name
  • majorVersion
  • minorVersion
  • latestMajorVersion
  • latestMinorVersion
  • upgradable
• H5P copyright info (aggreage to one response if when no license info exists for H5P Metadata: “Copyright info not found” or “null”

[tmkarlsen]

Current version in prod/test consists of

"title": "xxxx", "published": true/false, "h5pLibrary": { "name": "H5P.xxx", "majorVersion": x, "minorVersion": xx, "latestMajorVersion": x, "latestMinorVersion": xx, "upgradable": true/false