RFR: 8256507: Add a micro benchmark for JDK-8153005 [v2]

[Weijun Wang]

> This is a micro benchmark for various algorithm settings of PKCS keystores. Strong for new algorithms and weak for old ones. Different iteration counts are tried. The result should show that the current setting (strong10000) is more efficient than old setting (weak50000).

Weijun Wang has updated the pull request incrementally with one additional commit since the last revision:

  not static anymore

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1277/files
  - new: https://git.openjdk.java.net/jdk/pull/1277/files/df96a06e..9247081d

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1277&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1277&range=00-01

  Stats: 67 lines in 1 file changed: 0 ins; 28 del; 39 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1277.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1277/head:pull/1277

PR: https://git.openjdk.java.net/jdk/pull/1277