Add ServiceManagement framework

[dongcarl]

Ref: https://developer.apple.com/documentation/servicemanagement?language=objc

Generated PR: madsmtm/objc2-generated#9

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A note: When running header-translator, I was getting a panic at:

objc2/crates/header-translator/src/main.rs

Line 280 in 5391a0d

let file = library.files.get_mut(&file_name).expect("file");

I logged the filename and found that header-translator is trying to get the ServiceManagement.h file, which didn't exist in library.files.

The reason why it's trying to get ServiceManagement.h is because unlike most "umbrella" files in frameworks, the ServiceManagement.h file has a few const CFStringRef declarations in them.

This is perhaps also reflected in ServiceManagement's modulemap, where the umbrella declaration is:

        umbrella "Headers"

Instead of something found in all other icrate supported Frameworks:

        umbrella header "CoreWLAN.h"

Since we need to skip all the declarations in ServiceManagement.h for CoreFoundation reasons, a workaround is just to delay unwrapping the file unless we parsed usable statements, which is implemented in this PR

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A question: The "Service Management" framework in general is supported on earlier macOS versions than the SMAppService, so which versions should I put in crates/header-translator/translation-config.toml? Also, which unstable-frameworks-macos-* should I put it under?

[madsmtm]

CI is failing because you're using a newer version of Xcode than icrate is currently generated with.

which versions should I put

Put the version of the framework; the supported versions of the framework will be automatically imported after we resolve #266.

modulemap

Yeah, we don't support that at all, the plan is to integrate better with clang first.

[dongcarl]

Seems like things are passing now

[dongcarl]

Anything else needed here?

[madsmtm]

Nope, looks good, thanks!