* Introduce VersionNumber newtype.

See `/libs/wire-api/test/unit/Test/Wire/API/Routes/Version.hs` for explanation.

Co-authored-by: Sven Tennie <[email protected]>
Co-authored-by: Paolo Capriotti <[email protected]>
Co-authored-by: Stefan Matting <[email protected]>
Co-authored-by: Leif Battermann <[email protected]>