RFR: JDK-8215019: Allow --install-dir on windows

[Alexander Matveev]

Please review the jpackage fix for bug [1] at [2].

This is a fix for the JDK-8200758-branch branch of the open sandbox 
repository (jpackage).

- Added support for --install-dir on Windows. It should be relative path 
to "Program Files" or "AppData".
- If --install-dir is invalid we will use app name instead.
- Added two new tests to validate --install-dir and related functionality.

[1] https://bugs.openjdk.java.net/browse/JDK-8215019

[2] http://cr.openjdk.java.net/~almatvee/8215019/webrev.00/

Thanks,
Alexander