ong/id: add uuidv4 and uuidv7

[komuw]

• v4 for minimal info sharing(since it does not give away time of generation)

• v7 for lexicography/sortability that’s good in databases

• https://blog.devgenius.io/analyzing-new-unique-identifier-formats-uuidv6-uuidv7-and-uuidv8-d6cc5cd7391a

• https://www.cybertec-postgresql.com/en/unexpected-downsides-of-uuid-keys-in-postgresql/

• https://datatracker.ietf.org/doc/html/draft-ietf-uuidrev-rfc4122bis

[komuw]

https://github.com/komuw/yuyuid