PacketTunnelProvider crash debug buttons

[graeme]

Task/Issue URL: https://app.asana.com/0/0/1205376937712482/f
Tech Design URL:
CC:

Description:

To verify that crash reporting works as expected from the PacketTunnelProvider extension, this PR adds debug menu items to trigger two types of crash: a fatal error and a memory overuse crash.

Note that this is an MVP of this functionality to verify that crash reports are sending. MacOS has a more elegant way of doing this realtime through sending messages, but I’ve kept this a bit simpler on iOS to start with.

Also note that iOS now has an implementation where simulation options are mutually exclusive. I’m aware this introduces a divergence between the two platforms, but thought I’d use this as somewhat of a proposal for how we could handle these as it’s a bit more concise code-wise and I believe it doesn’t really make sense to trigger multiple simulation options at the same time.

Steps to test this PR:

1. Ensure Settings -> Debug -> Internal User is toggled
2. Ensure NetworkProtection is not running
3. Go to Settings -> Debug -> Network Protection
4. Press one of the two crash simulation menu items (try both)
5. Go to Settings -> Network Protection and toggle the start switch
6. Confirm that it tried to connect then instantly fails (because 💥)

Copy Testing:

• Use of correct apostrophes in new copy, ie ’ rather than ’

Orientation Testing:

• Portrait
• Landscape

Device Testing:

• iPhone SE (1st Gen)
• iPhone 8
• iPhone X
• iPhone 14 Pro
• iPad

OS Testing:

• iOS 14
• iOS 15
• iOS 16

Theme Testing:

• Light theme
• Dark theme

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Internal references:

Software Engineering Expectations
Technical Design Template

[diegoreymendez]

Looks good to me, works well.