feat: Add iOS adapters to the bindings

[DataTriny]

Exposes the iOS adapters, updates the header file (I think recent versions of cbindgen changed the order of the generated symbols), updates both CMake and Meson build processes (we rrequire a newer version of Corrosion) and include pre-built binaries in our release assets for some targets.

I plan to integrate into the SDL example in a separate PR.

[DataTriny]

Hi @iMacHumphries, the API is unlikely to evolve during the review phase, so you can use the ios branch to start the integration in Godot. Let me know if you need help generating the library.

[iMacHumphries]

ITS WORKING! 🎉
I will wait until this PR has merged, and then open a PR to Godot and make sure to give you a huge shoutout @DataTriny. Thank you so much for delivering this so fast ⚡

• https://github.com/iMacHumphries/godot/tree/ios-accesskit
• https://heroiclegends.net

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