This change updates the KMIP object model to support explicitly
storing key wrapping data attributes. Key wrapping data is treated
externally as a dictionary and is stored as individual fields in
the back end. Various unit tests have been updated and added to
support these additions.
The code for persisting symmetric keys in a database has been added
along with the corresponding unit tests.
The usage mask list for cryptographic objects is stored as an integer bitmask.
The conversion takes place with a new SQLAlchemy type.
Switched ManagedObject value type to VARBINARY. This prevents errors from
occuring when trying to convert to a string.
Added the ORM code to be able to persist OpaqueData in a database.
This added the code to the base class ManagedObject as well. Unit
tests are added to demonstrate the code is working correctly.
Peter Hamilton
Nathan Reller