RFR: 7903731: Jextract should support macOS frameworks [v4]

[Nizar Benalla]

> Read the JBS issue for more detail.
> 
> This patch adds two new mac specific options, to make it easier to use frameworks and remove the need of a `compile_flags.txt` file. An exception is thrown if those options are used from an other platform, the error message is inspired from `jpackage`

Nizar Benalla has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains six commits:

 - Respond to feedback, Update Guide
 - Merge branch 'refs/heads/master' into jextract-mac-os
   
   # Conflicts:
   #	src/main/resources/org/openjdk/jextract/impl/resources/Messages.properties
 - Merge remote-tracking branch 'upstream/master' into jextract-mac-os
 - use consistent spacing
 - Fix typos, rename some methods and bump copyright year to 2025
 - add mac os support

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Changes: https://git.openjdk.org/jextract/pull/268/files
  Webrev: https://webrevs.openjdk.org/?repo=jextract&pr=268&range=03
  Stats: 127 lines in 6 files changed: 78 ins; 24 del; 25 mod
  Patch: https://git.openjdk.org/jextract/pull/268.diff
  Fetch: git fetch https://git.openjdk.org/jextract.git pull/268/head:pull/268

PR: https://git.openjdk.org/jextract/pull/268