feat: dynamic and tenant specific event configuration during runtime

[soccermax]

It should be possible to add dynamic periodic events during runtime. This could be useful if periodicity is driven by the business process and it's different on a tenant basis.

Concept Idea:

• add a new db table for runtimeEventConfig
• periodic events added during runtime are stored in this table
  • would this also make sense for ad-hoc events? Not sure yet
• every application instance would be informed via redis is a new event config is added
  • without redis db polling
• every app needs to fetch this information during startup
  • with redis this could also be done once and than shared. Benefit is less db connections are needed. Not sure yet
    - The event config class needs to be tenant aware in order to store tenant specific configuration
• Question is: Would be allow multiple periodicity for the same event?
  • This could be archived by adding a suffix to the type. This would need to be reflected in the db table for runtimeEventConfig as well.
• deletion of a runtimeEventConfig would need to be propagated to all instances and entry needs to be removed from event table and event config (runtime)

I easier solution could be (needs evalutation):

• add new logic after a periodic event that calcs the next event
  • would require to extend the event table to store the periodicity