RFR: 8265248: Implementation Specific Properties: change prefix, plus add existing properties [v5]

[Joe Wang]

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

Joe Wang has updated the pull request incrementally with one additional commit since the last revision:

  Thanks Roger. Changed to fully qualified names. Also made them align left instead of center

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3644/files
  - new: https://git.openjdk.java.net/jdk/pull/3644/files/466dc3b7..70f634de

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3644&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3644&range=03-04

  Stats: 29 lines in 1 file changed: 0 ins; 0 del; 29 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