* Add direct access link registry and dashboard impl and use in ML
* Add example plugin with migration example
* address code review comments
* Fixes, more code review updates
* Readme clean up
* add tests
* remove else
* Rename everything from DirectAccessLinkGenerator to the much short UrlGenerator. also fix the ml # thing and return a relative link from dashboard genrator
* add important text in bold
* Move url generators into share plugin
* add correct i18n prefix
* Fix timeRange url name
* make share plugin optional for dashboard
* fix code owners
* Use base UrlGeneratorState type, add comments
* Fix hash bug and add test that would have caught it
