Added PositionViewModel.cs
GameViewModel.cs
Created it and set a few variables for who's X and 0

Position.xaml
Adding bindings for x/o
Made cursor Hand for mouse over

PositionViewModel.cs
Look at GameViewModel.cs for displaying x or o
MainWindow.xaml.cs
Created GameViewModel when loaded

GameViewModel.cs
Initialize Core.Game
Add game players
Game.cs
Allowed setting Player1 and 2
Make Player1 and 2 OnPropertyChange notify
App.xaml
Added BooleanToVisibilityConverter

GameViewModel.cs
Added properties to determine if player1 is X or o

MainWindow.xaml
Implemented some player1 visual elements