Drill down for queries with "compareDateRange"

[ArthurHSUflow]

Hi !

We've been developping an embedded analytics module based on cube, with an extensive use of drill down. While it's working fine for most queries, it's not yet supported for queries with a date range comparison (and we plan to use it quite a lot)

For instance, the graph below is made from a comparison with a compare date range.

Would it be possible to extend the coverage of drill down ?

Many thanks in advance for your support on this

[github-actions[bot]]

If you are interested in working on this issue, please leave a comment below and we will be happy to assign the issue to you. If this is the first time you are contributing a Pull Request to Cube.js, please check our contribution guidelines. You can also post any questions while contributing in the #contributors channel in the Cube.js Slack.