Implement logic for getting of generating bean names.

[AlexandrKarpachov]

In case a bean has a value in @component annotation - get this value.
In case a bean has a value in an annotation that has inside @component annotation - get this value.
In case a component annotation has an empty value - generate a name from a class name.

If bean has two component annotations with different names throw an exception.
If bean has two component annotations with the same name use this name.