UUID version 7 (Pre-RFC Standard)

This library implements UUID version 7 based on an *earlier draft* of the specification, offering time-sorted UUIDs with approximately 50ns resolution. Released at version 0.1.0 in late 2021, it appears to be unmaintained. Crucially, it **does NOT conform to the final RFC 9562 standard for UUIDv7**, which specifies millisecond precision, leading to significant compatibility issues with compliant implementations.