X-ray comparison (#5731)

* Remove duplicated code from binning

* remove PKs from constituents

* Add rolling window XoX growth. Update time series decomposition

* Add descriptions for new time series features

* fix comparison

* The big rename

* add xray namespace and rename

* match updated endpoints

* fix threading

* Apparently we don't have to cast *id

* Fix field comparison

* api change: constituents are now keyd

* wip

* Unify shape of features for empty datastets with normal features

* Refactor

* use new structure

* hardcode order

* segment/segment

* comparison button

* histogram colors

* more layout tweaks

* sort by distance

* compare icon

* Refactor, generalize metadata/db-id

* more layout

* add cost to comparisons

* First round of tests, some bug fixes

* comment out currently unsed spec to make linter happy

* add cost to comparisons

* add titles

* use terms for difference

* remove uniqueness

* comparison items hover

* fix segment comparison link

* fix field sort by distance

* lint

* fix button

* fix comparison table borders