Allow different servers for server integration test suite

The current implementation is running the tests only with Wildfly.

The goal is to reuse as many tests as we can and change the server before running the test.

For example:

• mvn clean verify -pl integrationtests/server-integration/third-party-server -s maven-settings.xml -Dinfinispan.server.integration.launch=tomcat -Dtomcat.zip=/path/to/apache-tomcat.zip
• mvn clean verify -pl integrationtests/server-integration/third-party-server -s maven-settings.xml -Dinfinispan.server.integration.launch=wildfly
• mvn clean verify -pl integrationtests/server-integration/wildfly-modules