Add support for Lombok's @EqualsAndHashCode(cacheStrategy = LAZY)

[janeisklar]

Is your feature request related to a problem? Please describe.
The following class currently can't be tested using equalsverifier:

@RequiredArgsConstructor
@EqualsAndHashCode(cacheStrategy = EqualsAndHashCode.CacheStrategy.LAZY)
public class CachedHashCode {
  private final String foo;
}

Equalsverifier fails with the following error message: hashCode relies on $hashCodeCache, but equals does not..

Describe the solution you'd like
I want to be able to test the hashcode method that is created by Lombok when using its lazy caching strategy.

Describe alternatives you've considered
Using .withCachedHashCode would seem like an obvious option to work around this, but this unfortunately only works with private methods and thus fails with Cached hashCode: Could not find calculateHashCodeMethod: must be 'private int hashCode()'.

Additional context
I will provide a pull request with an proposal on how to solve this in a bit.

[jqno]

Thank you for the nice PR, and for even updating the docs! I'll let you know when I release this.

[jqno]

I've just released version 3.7!

[janeisklar]

Thanks again for the extremely fast response time and a great utility:)