Add `perform_after_commit` to ActiveJob jobs?

Since it is a common use to use `after_commit` around ActiveJob calls (like in #19), would it make sense to add to this gem a `perform_after_commit` method to all ActiveJob jobs?

I use the following concern in my app:

```rb
module AfterCommitableJob
extend ActiveSupport::Concern

class_methods do
def perform_after_commit(...)
AfterCommitEverywhere.after_commit do
perform_later(...)
end
end
end
end
```

Would more people benefit from including this in `after_commit_everywhere` directly?