Added home screen information about piggy banks.

app/Repositories/Account/AccountRepositoryInterface.php

@@ -51,6 +51,14 @@ interface AccountRepositoryInterface
      */
     public function getCreditCards();
 
+    /**
+     * Get the accounts of a user that have piggy banks connected to them.
+     *
+     * @return Collection
+     */
+    public function getPiggyBankAccounts();
+
+
     /**
      * Get all transfers TO this account in this range.
      *