Adding hint and cheat activities
#Features
- Two image button in top right corner of the app.
- On pressing the hint and show hint button hint is shown which the parent activity detects.
- On pressing the cheat and show cheat button answer is shown which the parent activity detecs.
- On correct answer question turn green and for wrong answer question turns red.
- Phone gets a small vibration for wrong answer.
- Question number is added.
- Buttons gets disable on once answering the question except next button.