Made basic versions of Game, Coordinates, Player

These files will compile and run - though they don't do anything yet
except print a filler message.

Created basic classes for

Game
-Not much here yet (WIP)

Coordinates
-Mostly functioning, can create one with row/column specified
-Has some error checking via exceptions (row/column must be >= 0)
-Has variety of methods to set/increase row/column,
including increaseByOne
-Has equals method implemented
-toString method for debugging
-validator method to make sure a Coordinate is valid before constructing
it
-undergone basic testing

Player
-Has basic attributes of name, location (coordinates), questions
answered correctly, and total questions answered
-Has basic methods to set/get above attributes
-toString method for debugging
-Validator method to make sure a player is valid before constructing.
-undergone basic testing