* refactor(frontend): rename all @grafana/data/src imports to @grafana/data
* feat(grafana-data): introduce internal entrypoint for sharing code only with grafana
* feat(grafana-data): add test entrypoint for data test utils usage in core
* refactor(frontend): update import paths to use grafana/data exports entrypoints
* docs(grafana-data): update comment in internal/index.ts
* refactor(frontend): prefer public namespaced exports over re-exporting via internal
* chore(frontend): fix a couple more weird paths that typescript complains about
* refactor(frontend): rename all @grafana/data/src imports to @grafana/data
* feat(grafana-data): introduce internal entrypoint for sharing code only with grafana
* feat(grafana-data): add test entrypoint for data test utils usage in core
* refactor(frontend): update import paths to use grafana/data exports entrypoints
* docs(grafana-data): update comment in internal/index.ts
* refactor(frontend): prefer public namespaced exports over re-exporting via internal
* Canvas: Fix division by zero
* Fix last add vertex control
* Apply fix to existing vertices
* Apply deltas to temporary paths
* Persist original source and target coorindates
* Add follow up TODO
* Update connection svg to handle originals
* Get rid of minimum constraints for deltas
* Apply persist coordinate system to vertex handlers
* Consolidate and rename selected value
* Update connection arcs to use new coordinates
* fix editor crashing with scenes
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Co-authored-by: Adela Almasan <adela.almasan@grafana.com>
* Canvas: Add corner radius option
* Update connection radius logic
* Simplify angle calcs
* Simplify math to be a bit more clear and efficient
* Add checks for hyperbola behavior
* Prevent arc calcs if no radius
* Add comments for SOME clarity
* Add some more clarity to comments
* Fix linter issue
* Check for segment overlap for first vertex
* Update public/app/plugins/panel/canvas/components/connections/ConnectionSVG.tsx
* Add comment for calc clarity
* Canvas: Add direction options for connections
* Fix radio control to handle default
* Fix broken options from merge
* Remove unused comment
* Change category and capitalize options for arrow
* Consolidate marker start and end for connections
* Fix linter issue
* Canvas: Add vertex control to connections
* Add function for vertex conversion
* Add vertex interface
* Add future vertex handling
* Only show vertices when connection selected
* Add vertices to save model
* Apply select constraint to first midpoint
* Add some infrastructure for vertex edit
* Render vertex edit and capture events
* Save vertex edit on button release
* Handle adding new vertices
* Limit number of vertices to 10
* Handle zoom for vertex edit and creation
* Rename future to add
* Remove more references to future
* Remove unsued console log
* Clean up styles
* Add some clarity for path generation
* Add clarity to connections event handling
---------
Co-authored-by: nmarrs <nathanielmarrs@gmail.com>
