* TraceQL metrics streaming POC
* Reduce duplicate frames by using scan() and combineResponses()
* Trying to remove samples outside of time range
* Remove code to clean out of range
* Metrics streaming config toggle
* Sync opening the search and metrics options
* Fix tests
* Fix issues after conflicts
* Fix tests
* Use absolute value when computing minXDelta
* Revert last commit
* Fix frame sorting
* Remove all duplicates
* Use fields from schema to get the frames
* Use FieldCache
* Address PR comments
* Add support for exemplars
* TraceQL metrics exemplars ftw
* Fix exemplars on histogram queries
* Added exemplars field for the query builder options
* Add series labels as exemplars dataframe fields so the panel can link series with exemplars
* Fix tests
* Fix lint
* Hide exemplars field from options
* Fix crash on histogram queries
* Use DataTopicAnnotations enum
* Fix test
* optimize tokens count from service accounts query
* add unit tests for tokens count
* skip broken test
* fix lint error
* rename Tokens to TokenCount
* Move TraceQL metrics queries to backend
* Add tests for TransformMetricsResponse
* Add tests for createMetricsQuery
* Refactor, detect metric queries and throw error for search queries
* Remove unneeded types
* Don't add start and end if they are 0. Return on err
* lint
* Fix pre-alloc of frames
* Address PR comments
Andre Pereira
Joey
Mihai Doarna