Various

1.  Renamed solution and all project name-spaces to pre-fix
'Swinesweeper'
2.  Enlarged game tiles
3.  Positioned mine count text to centre tile
4.  Sized Beginner form and grid correctly
5.  Sized Normal form and grid correctly
6.  Sized Advanced form and grid correctly
7.  Stopped game form from resizing
8.  Updated all unit tests