Made some progress on tileGroup directive. The main thing remaining is for individual tiles to highlight
Individual tiles are highlighting; tileGroup selection is mostly working (code needs major cleanup though)
Cleaned up code a bit
tile groups and selected tiles properly deselect; more code cleanup
Refactored tile groups, moved some of the code into services
Moved directives, controllers, and services into their own files;
Added TileGroupSelector directive
-Added dev data directory to VC
-Made select dropdowns work correctly
-Moved some directives into their own dirs
Committing everything so I can split this project into two separate repos