refactoring of security tests
JBQA-8003: tests for HTTPS over Management http-interface and web connectors
JBQA-8003: tests for HTTPS connection to Management http-interface with CLI
JBQA-8722: test for vault encrypted passwords in jboss-cli.xml
[WFLY-2913] generic http content upload handler
JBQA-8828: added test case for Kerberos authetication for PicketLink IDP
JBQA-8828 Kerberos authetication for PicketLink IDP - updated explicit BC provider, removed obsoleted method causing NPE
JBQA-8828: Fixed Kerberos IPv6 issues in the test setup
JBQA-8828: Kerberos IdP testcase - updated for WildFly 8