MarsRoverKata.txt

Mars is represented by a 5 x 5 grid.
You are given the initial starting point (x,y) of a rover and the direction (N,S,E,W) it is facing.
The rover receives a character array of commands.
- Implement commands that move the rover forward/backward (f,b).
- Implement commands that turn the rover left/right (l,r).
- Implement wrapping from one edge of the grid to another.
- Implement obstacle detection before each move to a new square: 
  If a given sequence of commands encounters an obstacle, 
  the rover moves up to the last possible point, 
  aborts the sequence and reports the obstacle.