Changed the uuid-creator to generate two types of ULID: default
(non-monotonic) and monotonic.
Until version 2.x.x this library only created monotonic ULIDs.
The version 3.0.0 breaks compatibility.
List of changes:
Changed UlidCreator
Created Ulid
Created UlidSpecCreator // abstract
Created DefaultUlidSpecCreator // implementation
Created MonotonicUlidSpecCreator // implementation
Removed UlidConverter
Removed UlidUtil
Removed UlidStruct
Create and update test cases
and more...
Test coverage: 93.5%