Enables Mule annotation processing so that annotated objects registered with the
Mule registry will automatically be configured. This helper also enables JSR-330
injection annotations
javax.inject.Inject and
javax.inject.Named.
Internal Implementation note: We could have used a 'registry-bootstrap.properties'
file to load the objects necessary to enable annotations however, that method
would not allow the annotation processors to be easily overridden when using other
platforms such as Google App Engine.