Add loading mask plugin for Info Pane
- use filterchange and selection change as begin events
- FilterStatus store load event as end event
Add loading mask plugin for plot
- there was already a loading icon show/hide, so I just replaced that with the plugin
Switch grid loading mask events to be on outer grid component
Add loading mask plugin for variable selector
- begin events: query to get measures, before source counts loaded
- end events: after source counts loaded
Add loading mask plugin for Explorer view
Add loading mask plugin for Learn About pages