Undo stage first for openstack::logging

Because of dependency loop cycles, moved to main stage.
TODO fix loops to ensure logging class have configured
at the very first runstage.

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>
Add openstack::logging class for all examples

Signed-off-by: Bogdan Dobrelya <bogdando@mail.ru>