add value and unit properties to ProfileGenericObject to make sure that code like iterators that rely on that do not break

dsmr_parser/objects.py

@@ -155,6 +155,16 @@ class ProfileGenericObject(DSMRObject):
         super().__init__(values)
         self._buffer_list = None
 
+    @property
+    def value(self):
+        # value is added to make sure the telegram iterator does not break
+        return self.__str__()
+
+    @property
+    def unit(self):
+        # value is added to make sure all items have a unit so code that relies on that does not break
+        return None
+
     @property
     def buffer_length(self):
         return self.values[0]['value']