[vectorIntrinsics] RFR: Merge panama-vector:master

[Paul Sandoz]

Merge master changes into vectorIntrinsics branch.

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Commit messages:
 - Remove unused method
 - Merge
 - 8256692: Zero: remove obsolete block from ZeroInterpreter::native_entry
 - 8253459: Formatter treats index, width and precision > Integer.MAX_VALUE incorrectly
 - 8256682: JDK-8202343 is incomplete
 - 8236926: Concurrently uncommit memory in G1
 - 8142984: Zero: fast accessors should handle both getters and setters
 - 8227400: Adjust jib profiles to make 3rd party tools for creating installers available on Mach5 test machines
 - 8253299: Manifest bytes are read twice when verifying a signed JAR
 - 8256581: Refactor vector conversion tests
 - ... and 428 more: https://git.openjdk.java.net/panama-vector/compare/5a4fd789...80db52fd

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - vectorIntrinsics: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=25&range=00.0
 - panama-vector:master: https://webrevs.openjdk.java.net/?repo=panama-vector&pr=25&range=00.1

Changes: https://git.openjdk.java.net/panama-vector/pull/25/files
  Stats: 150854 lines in 2333 files changed: 83838 ins; 50820 del; 16196 mod
  Patch: https://git.openjdk.java.net/panama-vector/pull/25.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-vector pull/25/head:pull/25

PR: https://git.openjdk.java.net/panama-vector/pull/25