* passes id and uid to PublicDashboardDatasource
* betterer results
* If for a public dashboard, return the PublicDashboardDataSource first or else getDatasourceSrv.get() will fail bc of no authed user.
Added some unit tests for resolving the uid from the many possible datasource types.
* updates betterer
* Exports DashboardService. Adds method to DashboardService to build anonymous user for use with public dashboards where there is no authed user. Adds method on dashboard_queries to get all dashboard uids from a dashboard.
* refactors to get unique datasource uids
* Adds tests for getting all unique datasource uids off a dashboard
* adds test for building anonymous user with read and query actions that are scoped to each datasource uid in the dashboard
* updates casing of DashboardService
* updates test case to have additional panel with a different datasource
* gives default interval to public dashboard data source
0b4af38bfa