voprf-ts 0.11.0

Compatible with draft v11 - https://datatracker.ietf.org/doc/draft-irtf-cfrg-voprf/11/

What's Changed

• Add some usage examples of the library. by @armfazh in #21
• update to be compliant with draft v11 by @armfazh in #22

Full Changelog: 0.9.0...0.11.0