* split out plugin manager
* remove whitespace
* fix tests
* split up tests
* updating naming conventions
* simplify manager
* tidy
* add more fakes
* testing time
* add query verif to int test
* renaming
* add process tests
* tidy up manager tests
* add extra case to int test
* add more coverage to store and process tests
* remove comment
* fix capatilization
* init on provide
* remove addfromsource from API
Refactors GetPluginDashboards/LoadPluginDashboard by moving database
interaction from plugin management to the plugindashboards service.
Fixes#44553
Co-authored-by: Will Browne <wbrowne@users.noreply.github.com>
