Save field state to char array
Add fieldState check logic
Use buttons to store fieldState
Add highlight method
Add win check; add comments
Фвв сщььутеі
Revert "Фвв сщььутеі"

This reverts commit ea1261f84dbcfdeb8ca07adb7d197062a32d2b59.
Add comments
Move game logic to TicTacToeEngine
Add simple AI moves
Small fixes.
Update metadata