Create System Test jar file.

[tobiasake]

Description

System Tests need to be able to be executed from normal Java command, e.g:
java -jar ei-system-test.jar -Dconfig.file.path=/path/to/configfile.properties

Update pom file to produce a ei-ve-system-tests.jar file in target folder.

Motivation

So system tests can be executed from a jar file and with a normal Java command.

Exemplification

Benefits

Possible Drawbacks