Redo Button control and functionality
Redo Button control and functionality

Part of debugger for simulations and interactions

google/codeworld,google/codeworld,pranjaltale16/codeworld,pranjaltale16/codeworld,alphalambda/codeworld,alphalambda/codeworld,pranjaltale16/codeworld,google/codeworld,alphalambda/codeworld