Changes

*StartScreen will setup create instances of both MyScreen and NextScreen, allowing the user to navigate between screens. This is by immediatley pushing Myscreen and then adding a changeListener to the environment for our applicationbutton on MyScreen to navigate to NextScreen*Both Player classes The NextScreen Class will contain create setup the code tic tac toe board and request user input for what is to be displayed per their moves. It does not allow invalid input, and once a piece has been placed, the respective players turnuser cannot place another piece on that square.*After the a player makes a move, the screens will swap and the other next player will take is requested to place their turn while their screen move and so on until a winner is determined, it is currently showinga tie game, or the reset button has been pressed.