add __model__ to detection

Signed-off-by: Ashwin Vaidya <[email protected]>

Author: ashwinvaidya17

model_api/python/model_api/models/detection_model.py

@@ -28,6 +28,8 @@ class DetectionModel(ImageModel):
     The `postprocess` method must be implemented in a specific inherited wrapper.
     """
 
+    __model__ = "DetectionModel"
+
     def __init__(self, inference_adapter, configuration=dict(), preload=False):
         """Detection Model constructor