CECS 274  Project 1

Define a class Robot for robots with the following properties.  The 
location of the robot is given by two integer coordinates: x for its 
east-west position and y for its north-south position.  The robot can face 
in any of four directions given by constants EAST, NORTH, WEST, and SOUTH.  
The public interface for a robot is

        Robot(int xinit, int yinit, Direction dinit);
        void move(int distance);
        void left_face();
        void right_face();
        int x_position();
        int y_position();
        Direction orientation();

Direction is an enumerated type that you define. The constructor creates a 
robot in a given location and facing in a given direction.  The move method 
moves the robot a given distance in the direction it is facing.  The left_face 
and right_face methods turn the robot to the left or right by 90 degrees. The 
x_position, y_position, and orientation methods return the robots current 
location and the direction in which it is facing.  

Write a program that lets the user create a robot and move it about at will.  
After each user command, the program will print the current location and 
orientation of the robot. Post on Beachboard the code and the tests showing 
the run from Linux.