Improve searching in MC Events with inclusive and exclusive searching by event type

[jonbartels]

Searching MC events would be improved with two key changes:

• being able to select events from a list/dropdown/quicksearch
• being able to include or exclude those events from a search

Use case #1 - I am an MC admin who is tracking down a stopped channel in MC. I need to be able to quickly find the stop channels event. If I can select this from a list I can SEE the event type I want instead of relying on the current free-text "Name" search field.

Use case #2 - I am an MC admin tracking down an issue in MC. When I view events I see MANY entries for the Data Pruner. I want to be able to EXCLUDE those events from my view so I can see all other events in time-order to triage the issue I want to solve.