RFR: 8265227: Move Proc.java from security/testlibrary to test/lib [v2]

[Weijun Wang]

> I'd like to move this tool to test/lib inside a proper named package.

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

  move to process and a test for itself

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/3496/files
  - new: https://git.openjdk.java.net/jdk/pull/3496/files/4823a1c6..200ce3bd

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=3496&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=3496&range=00-01

  Stats: 89 lines in 8 files changed: 82 ins; 0 del; 7 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3496.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3496/head:pull/3496

PR: https://git.openjdk.java.net/jdk/pull/3496