Rename modules to non-conflicting names. Reason:
there were new yast modules added into yast2 package which have
the same names. The naming here was not choosen wisely as it was
not specific enough. The renaming done was:
SystemdTarget => ServicesManagerTarget
SystemdService => ServicesManagerService
Merge pull request #62 from vmoravec/rename-modules

Rename modules to non-conflicting names. Reason:
there were new yast modules added into yast2 package which have
the same names. The naming here was not choosen wisely as it was
not specific enough. The renaming done was:
SystemdTarget => ServicesManagerTarget
SystemdService => ServicesManagerService