Hooks for mastersalt orchestration

For mastersalt orchestration we provide the following hooks:

dummy-pre-mastersalt-checkouts:  before we do any code update on base mastersalt repositories dummy-mastersalt-layout:  before any base file or directory creation dummy-pre-mastersalt-service-restart:  before mastersalt is restarted after its reconfiguration dummy-post-mastersalt-service-restart:  after mastersalt is restarted after its reconfiguration