Add tests for BM injection into container event observers

Service providers may have observer methods, which may observe any event, including any container lifecycle event, and
obtain an injected BeanManager reference.

It's probably a failure to inject BeanManager in BeforeBeanDiscovery which causes https://issues.apache.org/jira/browse/TOMEE-33

Currently, the TCK tests the BM injection for the following types of events:

• AfterBeanDiscovery
• AfterDeploymentValidation

We should extend the coverage and test every kind of container lifecycle event (BeforeBeanDiscovery, ProcessAnnotatedType, ...).