DOC: Add cookbook recipe like R's `expand.grid()`

Add `expand_grid()` recipe to cookbook

Add note about cookbook recipe to release notes

Revert "Add note about cookbook recipe to release notes"

This reverts commit e431a024c2e688f9917cafb12235ee72ecc3e119.

Remove pandas import, print dataframe in cookbook
Merge pull request #7556 from onesandzeroes/expand-grid

DOC: Cookbook recipe for emulating R's expand.grid() (#7426)