Show region commands - clean up formatting, add extra details

* Update GridService.HandleShowRegion() to provide a cleaner format for
display of info

* SceneManager.HandleChangeRegion()
  - revised to be case insensitive when specifying the selection region
name.

* SceneManager.HandleShowRegions()
  - updated and formatted displayed scene(region) info
  - added estate name and owner details
Update README.md files