[DESIGN] Submarine can support a service to customize new images for jupyter notebook/ experiment

[cdmikechen]

At present, the jupyter image is relatively large, if the user wants to add some dependencies about jupyter or Python based on the existing image, it is very troublesome. I think submarine can provide a service similar to S2i (source to image) or using buildah, which directly builds a new image based on the existing jupyter image and registers it in submarine's environment. In this way, users can easily use the package they want to develop on the new notebook service.

The specific details will be discussed later ..