DBP expand xpc error pixels

[THISISDINOSAUR]

Task/Issue URL: https://app.asana.com/0/0/1207116442690809/f
Tech Design URL:
CC:

Description:
Adds a whole slew of pixels to close our data gap on running scanAllBrokers, including separating out existing parameters into pixels. See task for details.
It also:

• Adds proper handling for interrupting ongoing scans, which will close our large data gap
• Stops us trying to call scanAllBrokers if we don't have the correct loginItem permissions or if we are in the wrong directory.

Don't merge, privacy triage pending

Steps to test this PR:

1. One key thing is to make sure DBP still works as expected
2. Go through each of the new pixels and make sure each fires as expected. Generally speaking, we should never call scanAllBrokers without firing a pixel on both the app and the agent, and same for it completing (and also in general should never fire two pixels for the same event, the exception being initially calling scan all brokers, and the pixels for if we don't have the permissions/directory, since I thought that way around would be easier to deal with in grafana)

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Internal references:

Pull Request Review Checklist
Software Engineering Expectations
Technical Design Template
Pull Request Documentation

[Bunn]

LGTM.
Tested the full scan/opt-out flow and it's working as expected.
I see the pixels being sent, also forced the interrupted pixel and it worked