Synthetic CDI beans should have a beanClass attribute of the CDI extension

[Skyllarr]

The beanClass attribute of CDI beans is currently configured in a way that results in incorrectly identifying implementation class of synthetic beans. The beanClass attribute of beans is used by Weld (the reference/compatible impl) to determine how and where to define a proxy class. The problem was recently noticed in WildFly, where synth beans from Soteria were registered under a different module. Synthetic beans should have a beanClass attribute of the CDI extension that registers them.

@manovotn