Created base database controller and user database controller to allow for initial database control

models/users/seller.py

@@ -1,4 +1,4 @@
-from user import User
+from .user import User
 
 class Seller(User):
     '''
@@ -8,10 +8,10 @@ class Seller(User):
         super().__init__()
         self.store = ""
 
-    def login():
+    def login(self):
         print("Logging in as Seller")
 
-    def signup():
+    def signup(self):
         print("Signing up as Seller")
 
     def createProduct():