Add Copilot event manager tests and deduplication fixes #242

Job	Run time
setup_build	2s
build_reports	24s
build_dotnet (Release, WebJob.AppInsightsImporter, WebJob.AppInsightsImporter.csproj, AppInsights...	1m 45s
build_dotnet (Release, WebJob.Office365ActivityImporter, WebJob.Office365ActivityImporter.csproj,...	1m 30s
build_dotnet (Release, App.ControlPanel, App.ControlPanel.WinForms.csproj, ControlPanelApp, Contr...	2m 24s
build_dotnet (Release, Web, Web.csproj, Website, Website\_PublishedWebsites\Web)	2m 40s
build_aitracker	30s
release	23s
	9m 38s

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