RFR: 8265248: Implementation Specific Properties: change prefix, plus add existing properties

[Joe Wang]

Update module summary, add a few existing properties and features into the tables.

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Commit messages:
 - 8265248: Implementation Specific Properties: change prefix, plus add existing properties

Changes: https://git.openjdk.java.net/jdk/pull/3644/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3644&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8265248
  Stats: 873 lines in 14 files changed: 640 ins; 66 del; 167 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3644.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3644/head:pull/3644

PR: https://git.openjdk.java.net/jdk/pull/3644