1. Add support to pegleg to generate a passphrase from CLI
2. Update unit test to ensure encryption/decryption supports passphrase rotation
3. Update order of import statements to satisfy pep8
4. Add unit test for CLI passphrase generation
5. Resolve merge conflicts via rebase
Change-Id: I5cb9e41b2f0fac2451bd2b74f33c48cda417c22d
1. Adds the passphrases generation capability in Pegleg CLI,
so that pegleg can generation random passwords based on a
specification declared in pegleg/PassphrasesCatalog documents
2. Pegleg also wraps the generated passphrase documents in
pegleg managed documents, and encrypts the data.
3. Adds unit test cases for passphrase generation.
4. Updates pegleg CLI document.
Change-Id: I21d7668788cc24a8e0cc9cb0fb11df97600d0090
Alexander Hughes