QNX: Deploy only *.so.? libs

While on Unix systems, libQt5XYZ.so* are symlinks to libQt5XYZ.so.1.2.3, on
Windows hosts these files are copies instead of actual symlinks. Therefore,
when deploying from a Windows host, all the duplicates get uploaded to the
target, effectively taking a lot of unnecessary space.

Because Qt QNX apps link only agains *.so.? files, we deploy only those when
on Windows hosts.

Change-Id: I8f9f3f3a30d227b907f94f30ca47636dcb345eec
Reviewed-by: hjk <hjk121@nokiamail.com>
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>
Reviewed-by: Tobias Nätterlund <tobias.naetterlund@kdab.com>
Reviewed-by: Filipe Azevedo <filipe.azevedo@kdab.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
QtSupport: Fix wrong build directory for examples

By partially reverting 92fbbaea9b4d96f88d556c12cb40c5382a53df70

Task-number: QTCREATORBUG-13630
Change-Id: Ia04a224f2a12839d2cf27828009c945383a4c19c
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>