Solution to assignment 6 warm-up - methods for Snake Skins

Object Oriented Solution (strongly recommended):

pg6a class
     main method - handles user I/O and primary processing

SnakeBox class - create and manipulate a box of snakes
     SnakeBox(filename) - create and initialize a box based on data in a
     plain text input file, parameter is the filename

     display() - display the current box on the screen

	 findSnake() - find the next snake
     printEnds() - display the endpoints of the snake most recently skinned

	 getCount() - return the number of (full) snakes in the box
     finished() - true if there are no more snakes