RFR: 8373628: jpackage doesn't print to console until completetion

[Alexey Semenyuk]

Make jpackage ToolProvider implementation implement `ToolProvider#run(PrintStream, PrintStream, String)` method such that it passes `PrintWriter` objects with auto-flush enabled into `ToolProvider#run(PrintWriter, PrintWriter, String)` call.

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Commit messages:
 - cli Main: auto flash stderr and stdout in all variants of ToolProvider

Changes: https://git.openjdk.org/jdk/pull/28807/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28807&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373628
  Stats: 20 lines in 1 file changed: 20 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/28807.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28807/head:pull/28807

PR: https://git.openjdk.org/jdk/pull/28807