Supports collecting GCSettingsEvent for gc-collect profile

[cshung]

This change supports collecting GCSettingsEvent for gc-collect profile. The change will work for both dotnet-trace and dotnet-monitor.

The depends on the underlying mechanism built in https://github.com/dotnet/runtime/pull/101189

[noahfalk]

As part of this change please also update the protocol doc stored here: https://github.com/dotnet/diagnostics/blob/main/documentation/design-docs/ipc-protocol.md

[noahfalk]

fyi @dotnet/dotnet-monitor

[cshung]

Test results on Windows.

Tool	Arguments	Rundown Behavior
dotnet monitor	gc-collect	(no rundown for 8, settings for 9)
	gc-collect + cpu	(full rundown for 8, 9)
	gc-collect + metrics	(no rundown for 8, settings for 9)
dotnet-trace	gc-collect	(no rundown for 8, settings for 9)
	gc-collect rundown true	(full rundown for 8, 9)
	gc-collect rundown false	(no rundown for 8, 9)

[cshung]

@noahfalk, can we take a look at this again? With the latest code, I should have addressed all the comments above.

[noahfalk]

@dotnet/dotnet-monitor you probably want to take a look at this

[cshung]

@noahfalk, here is the third iteration with all the comments addressed again.