Add validation for 3.1.4 da - dd

If the bean class of X does not directly extend the bean class of another managed bean, the container automatically detects the problem and treats it as a definition error.

Possible ways this can happen:

• a specializing bean extending a non simple bean.
• a specializing bean extending nothing.
• a specializing bean directly extending an enterprise bean class.
• a specializing bean implementing an interface and extending nothing.