RFR: 6812: Rules 2.0 [v7]

[Henrik Dafgård]

> This PR will merge the new, breaking, API changes for Rules 2.0 as well as updates to all JMC IRule implementations, the JMC GUI and exporting functionality.

Henrik Dafgård has updated the pull request incrementally with one additional commit since the last revision:

  Fix RecordingSettingsRule

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Changes:
  - all: https://git.openjdk.java.net/jmc/pull/163/files
  - new: https://git.openjdk.java.net/jmc/pull/163/files/49f6e9e1..8f3df493

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jmc&pr=163&range=06
 - incr: https://webrevs.openjdk.java.net/?repo=jmc&pr=163&range=05-06

  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jmc/pull/163.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/163/head:pull/163

PR: https://git.openjdk.java.net/jmc/pull/163