RFR: 8307307: Improve ProcessTools.java to don't try to run Virtual wrapper for incompatible processes

[Leonid Mesnik]

The ProcessTools has some support of jtreg thread factory functionality.
It tries to run the new process using virtual thread to run `main()` method.
This fix updates it to skip the java runs where no main class is involved and more correctly process options which has 2nd argument.
Also is sets `main.wrapper` property to allow launched process understand id any wrappers is used.

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Commit messages:
 - 8307307: Improve ProcessTools.java to don't try to run Virtual wrapper for incompatible processes

Changes: https://git.openjdk.org/jdk/pull/13808/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13808&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8307307
  Stats: 33 lines in 1 file changed: 14 ins; 4 del; 15 mod
  Patch: https://git.openjdk.org/jdk/pull/13808.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13808/head:pull/13808

PR: https://git.openjdk.org/jdk/pull/13808