ENH: Add a new example showing hydrometeor classification and QPE functionality

[mgrover1]

At the recent ERAD tutorials, there were some great new tutorials put together by the meteoswiss/meteofrance team (@wolfidan @jfigui )

Sample notebook

It would be nice to have a concise example of this in our examples gallery!

[mgrover1]

@wolfidan following up here - would this be something you would be interested in working together on?

[wolfidan]

Hi @mgrover1 , sorry for the delay, Yes I will try to add this in the examples gallery as soon as possible

Would you split these particular notebooks by processing category or add a new "combined" example category here https://arm-doe.github.io/pyart/examples/index.html. I think it can also be relevant to have examples of a whole chain of processing commands. We just need to find a proper name for this type of examples.

[mgrover1]

I think splitting these up, and then adding a more detailed blog post bringing these together... I see the blog post section as more full-workflow focused