Added a small and simple test EI.java. and fixed some buggs

src/ei/engine/math/Vector2I.java

@@ -10,6 +10,8 @@ public class Vector2I {
 	}
 	
 	/**
+	 * Get the X value
+	 * 
 	 * @return the x value in the vector
 	 */
 	public int getX(){
@@ -17,9 +19,24 @@ public class Vector2I {
 	}
 	
 	/**
+	 * Get the Y value
+	 * 
 	 * @return the y value in the vector
 	 */
 	public int getY(){
 		return y;
 	}
+	
+	/**
+	 * Add to the vectro
+	 * @param i The amount to add
+	 */
+	public void add(int i){
+		x += i;
+		y += i;
+	}
+	
+	public String toString(){
+		return "Vector2I["+x+","+y+"]";
+	}
 }