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)

yahtzee_goals.py

@@ -40,3 +40,29 @@ class GoalThrees:
             if die.face == 3:
                 total += 3
         return total
+
+class GoalFours:
+    "Four points for each four"
+    def prompt(self,dice):
+        potential_score = self.score(dice)
+        return f"Fours ({potential_score})"
+    def score(self,dice):
+        total = 0
+        for die in dice:
+            if die.face == 4:
+                total += 4
+        return total
+    
+class LargeStraight:
+    "Fourty points for 5 sequential dice"
+
+    def prompt(self, dice):
+        potential_score = self.score(dice)
+        return f"Large Straight ({potential_score})"
+    def score(self,dice):
+        total = 0 
+        faces = [die.face for die in dice]
+        if faces == [1,2,3,4,5] or faces == [2,3,4,5,6]:
+            total = 40
+        return total
+