The current implementation of the encryption testing framework on
HIVE-8900 initializes a couple of encrypted databases to be used on .q test files. This is useful in order to make tests small, but it does not test all details found on the encryption implementation, such as: encrypted tables with different encryption strength in the same database.
We need to allow this kind of encryption as it is how it will be used in the real world where a database will have a few encrypted tables (not all the DB).
Also, we need to make this encryption framework flexible so that we can create/delete keys & zones on demand when running the .q files.