feat(itam): save_history method added to Device Model

ref: #605 #617

app/itam/models/device_models.py

@@ -99,3 +99,16 @@ class DeviceModel(DeviceCommonFieldsName, SaveHistory):
             return self.manufacturer.name + ' ' + self.name
 
         return self.name
+
+    def save_history(self, before: dict, after: dict) -> bool:
+
+        from itam.models.device_model_history import DeviceModelHistory
+
+        history = super().save_history(
+            before = before,
+            after = after,
+            history_model = DeviceModelHistory
+        )
+
+
+        return history