Resolve "As a QR-scanning connoisseur , I want to unlock stickers after scanning a QR code to feel a sense of reward."

Closes #73 (closed)

src/main/java/team5/smartTowns/rewards/data/BadgesRepository.java

 //Holds locations data repository
-package team5.smartTowns.rewards;
+package team5.smartTowns.rewards.data;
+
+import team5.smartTowns.rewards.Badge;
 
 import java.util.List;