Local charm upgrade service or create new inspector pt2 (one more coming)

__To QA__
- Deploy a local charm to sandbox
- Navigate around the inspector, opening closing, viewing charm details etc (exploratory)
- Drag and drop the same local charm zip
- You should get an inspector that has the Request Series view on top and the new Upgrade Services view on the bottom.

__Notes__
Part 3 will hook up the upgrade. It needed the fakebackend fix to land first.