RFR: 8321505 JFR: Update views

[Erik Gahlin]

Could I have a review of a change that updates the views for the jfr command.

- Include virtualisation support in System Information
- New view for native library load/unload failures
- New view for blocked by System.gc()
- New view for GC parallel phases
- New view for agents
- Improved file paths truncation for System Processes

Testing: jdk/jfr/tool

Thanks
Erik

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Commit messages:
 - Initial

Changes: https://git.openjdk.org/jdk/pull/17012/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=17012&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8321505
  Stats: 38 lines in 1 file changed: 35 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/17012.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17012/head:pull/17012

PR: https://git.openjdk.org/jdk/pull/17012