[RFE] requireBinding() to perform additional check

_From [ogregoire](https://code.google.com/u/ogregoire/) on January 01, 2010 12:51:07_

An interesting feature would be for requireBinding() to be extended so that
it returns an BindingRequirement, which checks if the class is well
annotated or is well in the right scope.

Typical usage:
requireBinding(MyClass.class).annotatedWith(MyAnnotation.class).in(Singleton.class);

It would add an error for each failure.

_Original issue: http://code.google.com/p/google-guice/issues/detail?id=456_