Support event bundles containing events with DocumentModels from multiple repositories

When using multiple repositories in a transaction, events are stacked up together inside a single bundle. That bundle is then processed by the ReconnectedEventBundleImpl for re-injecting session and then transmitted to post-commit listeners.

Problem are

• ReconnectEventBundleImpl do not support that kind of bundle (can be easily fixed, see NXP-5534)
• BinaryTextListener checks and warns about

That needs to be fixed, if we want to support multiple repositories accesses.