This patch provides implementations to feature of adding inspect wait state.
Changes covered in this patch:
* Added state and transitions, state diagram regenerated.
* inspector and oneview inspect interface now return INSPECTWAIT instead of
INSPECTING. Move node to inspect wait if inspect interface returns
INSPECTING or INSPECTWAIT.
* Add a timeout option to conductor, and a periodic task to check timeout
in the inspect wait state.
Story: #1725211
Task: #10630
Partial-Bug: #1725211
Change-Id: Ie76bfdad5966014a4dae826919ff5705462c743b