Generate API resource + API spec for retrieving CVE information

A new set of endpoints should be created that have the following formats:

• GET /cve => returns list of completed CVE
• GET /cve/{id} => returns a single completed CVE

Note that if a request is made for a non-complete CVE, we should return 404, just the same as we would for a non-existing CVE if requested by ID. This endpoint will contain all data returned from the Google Sheet/CVE service, with an additional description field with type String. This would be the description from the public CVE endpoint from CIRCL, which will be retrieved as a separate issue.