What is this feature about?

Events contain a hash value, but currently this SDK does not support verifying this hash. We should change this. What we need to do for this is add a verify_hash function on the event.

The Go implementation is a good reference to get started with the method: https://github.com/thenativeweb/eventsourcingdb-client-golang/blob/main/eventsourcingdb/event.go#L30-L55

Also, it makes sense to build the tests in the same way: https://github.com/thenativeweb/eventsourcingdb-client-golang/blob/main/eventsourcingdb/event_test.go#L17-L96

What needs to be done to implement this feature?

• Implement the verify_hash method
• Add tests
• Update the SDK documentation (leave this to @goloroden)
• Update the ESDB documentation (leave this to @goloroden)