macOS native SDK integration

[bruno-garcia]

An experiment to introduce specific mac target and bundle the native SDK (cocoa or sentry-native)

TODO:

1. Build sentry-cocoa for desktop and remove the bundled dylib
2. Compile the bridge code as part of CI
3. Make sure native symbol upload include the native bits needed
4. Portable PDB upload works: Sentry CLI crashes when running debug-files upload sentry-cli#1746
5. test with NativeAOT (on a Mac, requires .NET 8 build with dotnet 8 sdk #2622)

First successful crash captured natively: https://sentry-sdks.sentry.io/issues/4483237642/?project=5428537&query=is%3Aunresolved&referrer=issue-stream&statsPeriod=90d&stream_index=0

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

	Messages
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Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

- macOS native SDK integration ([#2625](https://github.com/getsentry/sentry-dotnet/pull/2625))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

Generated by 🚫 dangerJS against 9316c46

[jamescrosswell]

We probably don't want this checked into source control

[bruno-garcia]

We might need a second sln after all. Unles we find another way to avoid this.

Can we have a symlink? Sentry.NoMobile.sln is a symlink to Sentry.sln? So you can add the checks back on the msbuild files based on sln file name?

[vaind]

I've originally wanted to update this PR and make the fixes but it's not possible to build macos native AOT apps at this time (before .net 8 RC2), so I'm going to fork this further and only do Windows+sentry-native in the first step.

[vaind]

Although #2767 brings native AOT debug images by using sentry-native for macOS (because it's much easier then getting cocoa working and bundled properly), I'll leave this open for the overall approach taken with all the scope sync, etc. We may revisit this later when there are features only sentry-cocoa can fulfill.

[bruno-garcia]

Replaced by #2770