ctl-component 90% done
Fixes and cleanup regarding package import
moved add and remove from util to Access(Database)
Database Struktur Changes & Tests

* This commit nearly completes the new Database structure with the Access class.
The class Access is for every ssh using class and shall be able to add and
remove ssh1 keys from the authorized_keys with the expected permissions.

* There is also a new Test structure which is able to run all tests (some are
failing due to wrong exit codes).

* The libraries are now have to be used with the PYTHONPATH variable!