RFR: 8311877: [macos] Add CLI options to provide signing identity directly to codesign and productbuild [v3]

[Alexander Matveev]

> - Added `--mac-app-image-sign-identity` and `--mac-installer-sign-identity` CLI options to jpackage to provide signing identity directly to `codesign` and `productbuild` tools as per CSR [JDK-8316631](https://bugs.openjdk.org/browse/JDK-8316631).
> - If `codesign` or `productbuild` fails, then output of these tools will be printed to stdout to help user diagnose issues with signing using new options. Examples with sign identity set to "test" which does not exist on system:
>> Error: "codesign" failed with following output:
>> test: no identity found
> 
>> Error: "productbuild" failed with following output:
>> productbuild: error: Cannot write product to "/Users/SOMEDIR/Test-1.0.pkg". (Could not find appropriate signing identity for “test”.)
> - Added error handling not to allow invalid combinations of signing options.
> - Updated signing tests to test new changes.

Alexander Matveev has updated the pull request incrementally with one additional commit since the last revision:

  8311877: [macos] Add CLI options to provide signing identity directly to codesign and productbuild [v2]

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Changes:
  - all: https://git.openjdk.org/jdk/pull/16085/files
  - new: https://git.openjdk.org/jdk/pull/16085/files/4cd56e25..c3112444

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16085&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16085&range=01-02

  Stats: 159 lines in 9 files changed: 59 ins; 73 del; 27 mod
  Patch: https://git.openjdk.org/jdk/pull/16085.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16085/head:pull/16085

PR: https://git.openjdk.org/jdk/pull/16085