RFR: 8292177: InitialSecurityProperty JFR event [v3]

[Sean Coffey]

> New JFR event to record state of initial security properties.
>  
> Debug output is also now added for these properties via -Djava.security.debug=properties

Sean Coffey has updated the pull request incrementally with one additional commit since the last revision:

  Check for 0 security events

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10394/files
  - new: https://git.openjdk.org/jdk/pull/10394/files/aed938d2..f8faecf4

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10394&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10394&range=01-02

  Stats: 7 lines in 1 file changed: 3 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/10394.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10394/head:pull/10394

PR: https://git.openjdk.org/jdk/pull/10394