Elasticsearch: Convert Timeseries and Tables to Dataframes (#34710)

* Rebase (broken tests)

* Removed tables - refactored processAggregationDocs func

* Tests cleanup

* Nit - add space in percentile legend titles

* Fix labels naming - use metricAggType map

* Fix bug which appended same fields over and over again

* Replace test with dataframes

* Fix tests

* Add nolint:gocyclo - will need refactoring

* Move frames tags assignment

* Add failing test fo when ES server is booting up

* Revert "Add failing test fo when ES server is booting up"

This reverts commit fd14a1f.

Co-authored-by: Elfo404 <me@giordanoricci.com>