* Add initial Variations Report to analytics feature.
* Restrict query to variations when not specifying any product IDs.
* Add route to get variations without specifying a parent.
* Move variations table component to variations report directory.
* Add missing LIMIT clause to variations report query.
* Remove broken features from Variations table.
* Add Variations report controller to CSV emailer.
* Add initial Variation Stats endpoint, based on Product Stats.
* Hook Variations Report components up to new stats endpoint.
* Hook attribute filter up to variations report queries.
* Remove variation title filter usage.
See: https://github.com/woocommerce/woocommerce-admin/pull/5100
* Use filtered separator in variation name formatting.
* Add "single variation" to variations report, fix autocompleter API request.
* Fix segmentation by variation.
* Add comparison to variations report.
* Always include manually specified variations in report results.
* Fix variations report table comparison mode.
The ReportTable component expects the `filter` query param.
* Fixing styling of compare button without table search component.
* Add variation filter to Orders report.
* Link orders count to orders report filtered by variation.
* Orders report: include variation attributes in product names.
* Further style tweaks for variations report download button.
* Add variations filter to order stats query.
* Clean up "category includes" login in REST controllers.
Prep for "category excludes" in the Variations report.
* Support category exclusion in report filters.
* Fix filter param used by the variation report table component.
* Add category filter to variations report.
* Fix initial selected ReportTable rows when using non-default compareParam.
* Add a new autocompleter for variable products.
* Add products filter to variations report.
* Fix tests.
* Handle variation IDs that are no longer found.
* Add documentation.
* Use getSetting() instead of directly accessing window properties in client code.
* Fix ordering Variations by SKU.
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