[MobileCoreServices,MobileIcons] Add modulemap

[leptos-null]

What does this implement/fix? Explain your changes.

This enables hbang/libcephei@7ad69a9 to compile.

This PR adds module information for

• MobileCoreServices
• MobileIcons

Checklist

• New code follows the code rules
• I've added modulemaps for any new libraries (e.g. see libactivator/module.modulemap): it should be possible to @import MyLibrary; in ObjC, or import MyLibrary in Swift.
• My contribution is code written by myself from reverse-engineered headers, licensed into the Public Domain as per LICENSE.md; or, code written by myself / taken from an existing project, released under an OSI-approved license, and I've added relevant licensing credit to LICENSE.md

Does this close any currently open issues?

hbang/libcephei#58

Any relevant logs, error output, etc?

No

Any other comments?

No

Where has this been tested?

Operating System: macOS

Platform: Darwin

Target Platform: iphone

Toolchain Version: Apple clang version 15.0.0 (clang-1500.3.9.4)

SDK Version: iPhoneOS16.5