RFR: 8281658: Add a security category to the java -XshowSettings option [v11]

[Sean Coffey]

> New functionality in the -XshowSettings menu to display relevant information about JDK security configuration

Sean Coffey has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 21 additional commits since the last revision:

 - Testcase correction
 - Merge branch 'master' into 8281658-showsettings-security
 - Harden code to report lack of SSL support
 - Testcase correction
 - tweaks based on latest reviews
 - Merge branch 'master' into 8281658-showsettings-security
 - Avoid sharing INDENT variables
 - Merge branch 'master' into 8281658-showsettings-security
 - Don't allow bad subcommand values for security component
 - restore more informative help message
 - ... and 11 more: https://git.openjdk.org/jdk/compare/5a42dce4...5b8fc0b9

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Changes:
  - all: https://git.openjdk.org/jdk/pull/14394/files
  - new: https://git.openjdk.org/jdk/pull/14394/files/559f698e..5b8fc0b9

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14394&range=10
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14394&range=09-10

  Stats: 15871 lines in 519 files changed: 8231 ins; 7026 del; 614 mod
  Patch: https://git.openjdk.org/jdk/pull/14394.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14394/head:pull/14394

PR: https://git.openjdk.org/jdk/pull/14394