RFR: 8375054: Removed "signed" property from jpackage app image file

[Alexey Semenyuk]

$subj

Additionally:
 - Validate that the value of the "--app-image" option on macOS is a valid macOS bundle, and if it is not, exit with a new "error.parameter-not-mac-bundle" error.
 - Read stdout of "/usr/bin/codesign" and "/usr/sbin/spctl" commands outputing plist XML as binary, and not as text.

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Commit messages:
 - Fix a bug revealed by LicenseTest.java and AppImagePackageTest.java test failures
 - ErrorTest: add a test case for a new "error.parameter-not-mac-bundle" error
 - Remove the "signed" property from the app image file; MacHelper: fix readPList() to make it read binary output of commands that write plist xml in stdout; MacSignVerify: fix findEntitlements() to save binary output for using as input for MacHelper.readPList()
 - Check that the value of the "--app-image" option is a valid macOS bundle and not an any directory
 - MacBundle: move the class to shared code to use in the cli package and in the test code. Remove fromAppImageLayout() - it can't be used in the test code. Remove isSigned() - it is broken; MacPackagingPipeline: follow-up MacBundle changes, implement isSigned(MacBundle) method properly; MacFromOptions: use MacPackagingPipeline.isSigned()
 - OptionSpecBuilder: support configuring cooked validator, expose createValidator()
 - Validator: add or() method; simplify and()
 - MacSignVerify: minor

Changes: https://git.openjdk.org/jdk/pull/29173/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29173&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8375054
  Stats: 627 lines in 21 files changed: 371 ins; 182 del; 74 mod
  Patch: https://git.openjdk.org/jdk/pull/29173.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29173/head:pull/29173

PR: https://git.openjdk.org/jdk/pull/29173