New chunking tutorial

[adele-morrison]

In @Thomas-Moore-Creative's COSIMA talk, there was a lot of interest in having a tutorial in the Recipes showing best practice for chunking for different types of problems.

e.g. which dimensions to chunk in depending on the problem, how big should chunks be, etc.

This might be a good starting point to base this on: https://access-nri-intake-catalog.readthedocs.io/en/latest/usage/chunking.html