Making UIDs more consistent and easier to use:
- Spec tester API now passes NextUid field which contains the next Uid to generate. Implementing code no longer needs to parse past events or persist counter (not all implementations do that).
- All tests have monotonically incrementing Uids. This will avoid potential conflicts in case implementations store distinct entities only by their uid.
Full Changelog: v1.3.2...v1.4.0