Add global filters for times and event types

[AlanSl]

• [x] Adds two global filters - one for filtering based on time, and one for filtering events by type.
• [x] Updates global filtering so that filtered messages are excluded from data export files
• [x] Updates connections table filters, adding traffic and age filters with formatted data labels
• [x] Adds a tool for ensuring only one of a group of tooltips, popups etc is showing at the same time and applies it to filter controls (and also to large datatable popups like JSON explorer and streams subtables)