Implement master and slave mode

Implement master and slave mode

Final patch with master and slave mode implementation. Every container should
have its own privilege DB - slave will delegate calls to SMACK and to Cynara
Administrative Socket to master.

[Verification]  Build, install, run tests on hosts - no changes should occur.
                Run tests in containers:
                  * Run a container
                  * bind-mount /run/security-manager-master.socket and
                    /run/cynara/cynara.socket to container
                  * Run tests
                Keep in mind, some might fail due to tests not being
                container-aware.

Change-Id: Ibd1d884ad7dba6a15ebaa068c2c216a88562eb50