Refactored services to inherit from BaseService

src/core/sheerka/services/sheerka_service.py

@@ -12,3 +12,10 @@ class BaseService:
     """
     def __init__(self, sheerka):
         self.sheerka = sheerka
+
+    def initialize(self):
+        """
+        Adds cache or bind methods
+        :return:
+        """
+        pass