Replace databaseInterface with Django models

~~`databaseInterface` is still imported in a few places in MCPServer, primarily for the `getUTCTime` function that will be moved elsewhere, and for database locking that may be removeable.~~

See comments below.
Should this ```continue``` be here?  Should it fail the microservice if it cannot find an associated file or continue with a default ```myuuid``` value or skip this file?