correct form datacollector
Issue #2308213 by Wim Leers: Improve Services data collector: count *initialized* services
Issue #2315579 by martin107: Use FormStateInterface for all typehints.
Rename date to date.formatter because of #2309221
Issue #2310339 - The service definition 'event_dispatcher' does not exist.
Update ConfigFactoryWrapper to the new ConfigFactoryInterface. See issue #2312135