* feature (db): Add the ability to enable debug output for a connection
* refactor: Use scope.Global instead of "global"
* feature (db/migrations): Add kms audit keys
Add schema changes to support a new DEK for audit crypto operations.
* feature (kms/audit): Add audit key type
All the bits required to define a new DEK concrete type for
operating on audit entries.
* refactor (db): Remove deprecated migration unit tests.
We added a new audit DEK to kms.CreateKeysTx(...). Unfortunately,
unit tests like TestMigrations_UserDimension,
Test_PrimaryAuthMethodChanges and TestMigrations_CredentialDimension
have an indirect dependency on a specific historical set of DEKs via
an indirect call kms.CreateKeysTx. This of course fails because the
new DEK's tables is not a part of pinned migration versions that these
tests depend on.
Jim