Made function to tally favorite colors.

friend_functions.py

@@ -91,7 +91,14 @@ def get_color_dict(people):
             "orange": 1,
         }
     """
-    raise NotImplementedError()
+    color_count = dict()
+    for person in people:
+        for color in person["favorite_colors"]:
+            if color not in color_count:
+                color_count[color] = 0
+            color_count[color] += 1
+    return color_count
+