* wip: began work off removing meta and pluginExports from DataSourceApi interface
* WIP: changing how plugins are exports and loaded
* Down the refactoring rabit hole that keeps expanding
* TestData now returns DataSourcePlugin
* Refactoring: fixed app config page loading, type renamings and more typings
* Refactor: Correct casing on DatasourceStatus => DataSourceStatus
* set the plugin version if there is a migration handler
* only call panel migration if the version changes
* set the version after change also
* avoid NPE... check that we have options
* destroy is based on the previous panel type, not the next one
* Panels: Minor refactoring on panel plugin version code, #16186
Changed how react panels store their options
* Added a ReactPanelPlugin as the interface that react panels export, this way react panels have clearer api, and gives us hooks to handle migrations and a way for panel to handle panel changes in the future
* Moved gauge value options into a sub oject and made editor more generic, will be moved out of gauge pane later and shared between singlestat, gauge, bargauge, honecomb
* Also remove nested options prop that was there due to bug
* Added missing Gauge props
* Fixed gauge issue that will require migration later and also value options editor did not handle null decimals or 0 decimals
* Fixed unit tests
* More fixes for react panels
