Provide possibiility to test custom ZAP login scripts by a manual test

[de-jcup]

Situation

With

• ZAP wrapper shall use template data #3710

the ZAP wrapper application can use a groovy script to handle automated logins.

But when a script is being customized/maintained it is not easy to test it.

Wanted

It shall be very easy to start a login from the IDE

Solution

Introduce ZapGoovyLoginScriptManualTest inside the sechub-wrapper-owasp-zap submodule.

• The test class shall implement ManualTest interface from sechub-testframework
• The test shall use parameter --headless=true introduced in Provide ZAP wrapper application argument to disable headless mode #3944
• load a script from a system property path (mandatory)