Created login functinality

controllers/database/database.py

@@ -1,4 +1,5 @@
 from abc import ABC, abstractmethod
+from typing import Mapping, Any 
 import sqlite3
 
 class DatabaseController(ABC):
@@ -14,6 +15,12 @@ class DatabaseController(ABC):
                 self._conn.close()
             print(e)
 
+    def new_instance(self, of: type, with_fields: Mapping[str, Any]):
+        obj = of.__new__(of)
+        for attr, value in with_fields.items():
+            setattr(obj, attr, value)
+        return obj
+    
     @abstractmethod
     def create(self):
         pass