In response to #18282
DataLinksEditor does not limit amount of links by default now (it was 1 link before, unless maxLinks prop was specified). Also, links that do not have label specified, are not rendered anymore.
* WIP: initial panel links editor
* WIP: Added dashboard migration to new panel drilldown link schema
* Make link_srv interpolate new variables
* Fix failing tests
* Drilldown: Add context menu to graph viz (#17284)
* Add simple context menu for adding graph annotations and showing drilldown links
* Close graph context menu when user start scrolling
* Move context menu component to grafana/ui
* Make graph context menu appear on click, use cmd/ctrl click for quick annotations
* Move graph context menu controller to separate file
* Drilldown: datapoint variables interpolation (#17328)
* Add simple context menu for adding graph annotations and showing drilldown links
* Close graph context menu when user start scrolling
* Move context menu component to grafana/ui
* Make graph context menu appear on click, use cmd/ctrl click for quick annotations
* Add util for absolute time range transformation
* Add series name and datapoint timestamp interpolation
* Rename drilldown link variables tot snake case, use const values instead of strings in tests
* Bring LinkSrv.getPanelLinkAnchorInfo for compatibility reasons and add deprecation warning
* Rename seriesLabel to seriesName
* Drilldown: use separate editors for panel and series links (#17355)
* Use correct target ini context menu links
* Rename PanelLinksEditor to DrilldownLinksEditor and mote it to grafana/ui
* Expose DrilldownLinksEditor as an angular directive
* Enable visualization specifix drilldown links
* Props interfaces rename
* Drilldown: Add variables suggestion and syntax highlighting for drilldown link editor (#17391)
* Add variables suggestion in drilldown link editor
* Enable prism
* Fix backspace not working
* Move slate value helpers to grafana/ui
* Add syntax higlighting for links input
* Rename drilldown link components to data links
* Add template variabe suggestions
* Bugfix
* Fix regexp not working in Firefox
* Display correct links in panel header corner
* bugfix
* bugfix
* Bugfix
* Context menu UI tweaks
* Use data link terminology instead of drilldown
* DataLinks: changed autocomplete syntax
* Use singular form for data link
* Use the same syntax higlighting for built-in and template variables in data links editor
* UI improvements to context menu
* UI review tweaks
* Tweak layout of data link editor
* Fix vertical spacing
* Remove data link header in context menu
* Remove pointer cursor from series label in context menu
* Fix variable selection on click
* DataLinks: migrations for old links
* Update docs about data links
* Use value time instead of time range when interpolating datapoint timestamp
* Remove not used util
* Update docs
* Moved icon a bit more down
* Interpolate value ts only when using __value_time variable
* Bring href property back to LinkModel
* Add any type annotations
* Fix TS error on slate's Value type
* minor changes
* Graph panel should support SeriesData
* Graph panel should support SeriesData
* same path for all series
* merge master
* support docs
* add test for processor
* Graph: removed old unused data processing logic
* Graph: minor refactoring data processing
* fix histogram
* set Count as title
* Begin conversion
* Test setup started
* Begin rewrite of graph
* Rewrite as class
* Some tests passing
* Fix binding errors
* Half tests passing
* Call buildFlotPairs. More tests passing
* All tests passing
* Remove test test
* Remove Karma test
* Make methods out of event functions
* Rename GraphElement
* Set fillColor in bars on load and on color change
* Change bar fill color on color override
* Added test for series overrides
* Moved bars fill color setting into time_series. Fixed issue with prev commit where you could not show bars because of series overrides.
