RFR: 8373836: add anchors to the java options in the java man page

[Roger Calnan]

adjust each of the command line options to include an html anchor so that one can give a link that goes directly to the section in the man page that covers a specific option

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Commit messages:
 - replace arg:-something with arg__something
 - updated copyright year
 - back out changes to keytool.md
 - Initial links added

Changes: https://git.openjdk.org/jdk/pull/28954/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28954&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373836
  Stats: 247 lines in 1 file changed: 0 ins; 0 del; 247 mod
  Patch: https://git.openjdk.org/jdk/pull/28954.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28954/head:pull/28954

PR: https://git.openjdk.org/jdk/pull/28954