AutoML 2.0: Save intermediate models

**Is your feature request related to a problem? Please describe.**
I am using AutoML 2.0. However, I want to do some re-evaluation with new data down the line. That means I would like to save the intermediate models for further analysis as zip files. At the moment, they are not stored to the checkpoint folder.

**Describe the solution you'd like**
We can set checkpoint folder, so I suggest we could also set a temporary models folder. As I remember it was possible in the "old" AutoML API. Perhaps, it still is, I just did not find it for some reaon.

**Describe alternatives you've considered**
The models are possible saved in AppData subfolders but I did not yet find them.