Enable AppleAppBuilder to bundle iOS applications built for NativeAOT runtime

[ivanpovazan]

This PR adds support for bundling iOS applications built for NativeAOT runtime with AppleAppBuilder.

An example of invoking the task would be as follows:

<AppleAppBuilderTask
        UseNativeAOTRuntime="True"
        TargetOS="$(TargetOS)"
        Arch="$(TargetArchitecture)"
        ProjectName="$(AppName)"
        Assemblies="@(BundleAssemblies)"
        GenerateXcodeProject="True"
        BuildAppBundle="True"
        DevTeamProvisioning="$(DevTeamProvisioning)"
        OutputDirectory="$(AppDir)"
        Optimized="$(Optimized)"
        AppDir="$(MSBuildThisFileDirectory)$(PublishDir)">
        <Output TaskParameter="AppBundlePath" PropertyName="AppBundlePath" />
        <Output TaskParameter="XcodeProjectPath" PropertyName="XcodeProjectPath" />
</AppleAppBuilderTask>

Assumptions:

$(PublishDir) should include all the *.o, *.dat, *.a required for linking the AOT compiled managed executable with the native host application (from template: https://github.com/dotnet/runtime/blob/main/src/tasks/AppleAppBuilder/Templates/main-simple.m)

Fixes: #80910

---

PS The purpose of adapting AppleAppBuilder is to enable building sample applications which would serve as PoC and initial steps to enable testing and validation of NativeAOT on iOS support. The full SDK integration (via Xamarin build tasks) will become available as a follow-up work.

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Issue Details

---

This PR adds support for bundling iOS applications built for NativeAOT runtime with AppleAppBuilder.

An example of invoking the task would be as follows:

<AppleAppBuilderTask
        UseNativeAOTRuntime="True"
        TargetOS="$(TargetOS)"
        Arch="$(TargetArchitecture)"
        ProjectName="$(AppName)"
        Assemblies="@(BundleAssemblies)"
        GenerateXcodeProject="True"
        BuildAppBundle="True"
        DevTeamProvisioning="$(DevTeamProvisioning)"
        OutputDirectory="$(AppDir)"
        Optimized="$(Optimized)"
        AppDir="$(MSBuildThisFileDirectory)$(PublishDir)">
        <Output TaskParameter="AppBundlePath" PropertyName="AppBundlePath" />
        <Output TaskParameter="XcodeProjectPath" PropertyName="XcodeProjectPath" />
</AppleAppBuilderTask>

Assumptions:

$(PublishDir) should include all the *.o, *.dat, *.a required for linking the AOT compiled managed executable with the native host application (from template: https://github.com/dotnet/runtime/blob/main/src/tasks/AppleAppBuilder/Templates/main-simple.m)

Fixes: #80910

---

PS The purpose of adapting AppleAppBuilder is to enable building sample applications which would serve as PoC and initial steps to enable testing and validation of NativeAOT on iOS support. The full SDK integration (via Xamarin build tasks) will become available as a follow-up work.

Author:	ivanpovazan
Assignees:	ivanpovazan
Labels:	area-Infrastructure-mono
Milestone:	-