Added classes gridModel and NumPadView, started most methods in gridModel. isConsistentAtRow:column:for: and generateGrid are not done
Ffunctioning sudoku app (MISSING GRID MODEL CLASS!)
Functioning sudoku (as far as we know)
Functioning sudoku with minor changes (new values blue, took grid out of viewController class)
Performed unit tests for GridModel class methods, ran Clang and OCLint and got no errors.
Merge pull request #2 from hanakim94/gridModel&numPadView

Grid model&num pad view