add the possibility to raise an exception in #included, #extended, #prepended, #inherited and break the calling feature
imo an exception in this hook methods should be possible to prevent the adding in the ancestor chain
raise "dont include me"
##>> RuntimeError: dont include me
what i want:
maybe other hook methods like method_defined should get an "prevent" option too
maybe for not breaking code we could add "before_included" where an exception could be raised