REIVEW: [NX-518] Orient database manager

This PR addresses the following issues:

https://issues.sonatype.org/browse/NX-518
https://issues.sonatype.org/browse/NX-519
https://issues.sonatype.org/browse/NX-542
OrientDB also has record-level security (https://github.com/orientechnologies/orientdb/wiki/Security) - however, I do think it's useful to perform basic obfuscation on any ids passed out via REST. Relying on authZ is not enough IMHO. Either way I think it's good to start with this and review performance once we have a working system (as it's easy to change this to a no-op).

http://programmers.stackexchange.com/questions/139450/is-obscuring-obfuscating-public-facing-database-ids-really-a-best-practice has a good discussion on the subject. See also https://www.owasp.org/index.php/Top_10_2010-A4