Create a TCK test for multiple OIDC mechanisms

[OndroMih]

Create a test that covers the situation described in detail in #342:

• a custom HttpAuthenticationMechanismHandler annotated with @Alternative @Priority to enable it
• 2 OIDC mechanism definitions - multiple combinations: one with the default qualifier, the other one with a custom qualifier; both with custom qualifiers; both defined on a single class; defined in 2 separate classes
• Inject both OIDC mechanisms into the custom handler via qualifiers

Optionally also create similar tests for other mechanisms, like Basic and Form. Or a test that combines many mechanisms, e.g. 2 Basic, 3 Form, 2 OIDC.