Code Kata: Mars Rover

Instructions of the kata are given at http://kata-log.rocks/mars-rover-kata

Note: To ensure that this lab focuses on OOP and TDD, we have written the code to take care of getting the users' input interactively via the commandline. To run this program, run node src/main.js. After completing the kata using the TDD approach, you can update main.js to call your functions instead.