Added region thumbnail images for testing
Added target images to grid cells
Changed grid cell design to overlay region names
Made changes to target view cells
Added country code ribbon to target grid cells
Renamed RegionViewController to VeraisonGridViewController
Created separate class for region view cells
Multiple changes to Controllers and Grid Views:
  - Added commmon ancestor for view cells
  - Renamed GridViewController to RegionViewController
Extracted Common ancenstor for GridViewControllers
Added functional scores controller and view
Adding additional file to commit