Recursive Generation Improvements

New and Enhanced Features

• Arbitraries.lazyOf(Supplier<Arbitrary<T>> ...) is now the method of choice for
  recursive value generation. It has much better shrinking behaviour than the
  more generic lazy() combined with oneOf().

• Added PropertyLifecycleContext.attributes(), which allows to query, set and change
  a property method's attributes like number of tries and seed within a
  AroundPropertyHook lifecycle hook.

• Added @PropertyDefaults annotation which allows to set the defaults
  of all property methods in a container.

Breaking Changes

• No known breaking changes

Bug Fixes

• Made loading of services thread-safe to allow use of jqwik generators
  in parallel JUnit runs: #117.
  Thank you, https://github.com/Danny02!