Added two goals into yahtzee_goals file.

Checkpoint 3: I think in Units 1 or 2 I wouldn't have had such specific conditions.
So OOP helps me target specific goals or problems that I might encounter.
I think OOP makes more sense to me than other targeted code we wrote in Unit 1 or 2.
I am struggling a little bit to understand creation of "." conditions/actions. Otherwise this
seems to be a super useful tool to know.

play.py

@@ -3,12 +3,16 @@ from yahtzee_goals import (
     GoalOnes, 
     GoalTwos, 
     GoalThrees,
+    GoalFours,
+    LargeStraight
 )
 
 goals = [
     GoalOnes(), 
     GoalTwos(),
     GoalThrees(),
+    GoalFours(),
+    LargeStraight(),
 ]
 
 game = Yahtzee(goals)