Wrong parameter order in BaseModelSerializer

[blackvvine]

Hi,

In the BaseModelSerializer definition, the Keras model is passed before the model ID:

https://github.com/spring-epfl/mia/blob/d389d30188ca115d21365f5b0595b1bb5f1bbee9/mia/serialization.py#L29

But in the ShadowModelBundle class the model ID is passed before the model object:

https://github.com/spring-epfl/mia/blob/d389d30188ca115d21365f5b0595b1bb5f1bbee9/mia/estimators.py#L118

I think the BMS abstract class definition should be corrected with the two arguments swapped in order.

Best