RFR: JDK-8223322: Improve concurrency in jpackage instances

[Andy Herrick]

Remove all non final static variables in jpackage java code (using InheritableThreadLocal for Logger and Argument instances) and remove sychronization in JPackageToolProvider.

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Commit messages:
 - JDK-8223322: Improve concurrency in jpackage instances
 - JDK-8223322: Improve concurrency in jpackage instances

Changes: https://git.openjdk.java.net/jdk/pull/1829/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1829&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8223322
  Stats: 214 lines in 8 files changed: 134 ins; 52 del; 28 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1829.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1829/head:pull/1829

PR: https://git.openjdk.java.net/jdk/pull/1829