Clustering TS: Infinispan Server instances provisioned by testsuite are always killed; leaking resources (e.g. file locks) on Windows platform

Continuation of WFLY-13897.

While the driver with numerous fixes (see WFLY-13897 blocked issues) now kills the servers, there is an outstanding problem which causes the Infinispan Server to hang.

While these are t hen killed abruptly (kill -9 on *nix and TASKKILL /F /PID on Windows), this causes a couple of issues:

• JVM crash files are unnecessarily created
• server profiles cannot be wiped since a lock is still held
• procmon still lists locked files and causes memory exhaustion