Enable hierarchical table view

### Discussed in https://github.com/grafana/grafana/discussions/57845 <div type='discussions-op-text'> ^{Originally posted by **lucaswhornsby** October 28, 2022} Building off this post in Grafana Community (https://community.grafana.com/t/hierarchy-in-grafana-table/53336), I would like to request the option to configure tables with a hierarchy such that individual rows can be comprised by sub-rows that can be expanded, and so forth. For an illustration, see below screenshot (from the original Grafana Community post).  This feature would enable drill-down analysis that can bring significant value to multiple diverse Grafana use cases. </div>