RFR: JDK-8301092 - Add benchmark for CRC32 [v3]

[Scott Gibbons]

> Adding a performance benchmark test for CRC32.  This does exactly the same test as for CRC32C.

Scott Gibbons has updated the pull request incrementally with one additional commit since the last revision:

  Fix copyright

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Changes:
  - all: https://git.openjdk.org/jdk/pull/12199/files
  - new: https://git.openjdk.org/jdk/pull/12199/files/d61f6588..7ff46913

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=12199&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=12199&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/12199.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/12199/head:pull/12199

PR: https://git.openjdk.org/jdk/pull/12199