#207 JUnit output format from QUTest

[Danilo Zanatta]

Have a command line switch to generate, in additional to the usual QUTest output, test logs in XML using the JUnit output format .
* https://www.ibm.com/docs/en/developer-for-zos/14.1?topic=formats-junit-xml-format
* https://github.com/testmoapp/junitxml