Release v0.0.8

Add web-bot-auth/crypto which provides webcrypto based signer
implementations.

At the moment, there is only Ed25519

Release v0.0.7

Update verification worker and release web-bot-auth v0.0.6

Restrict some export of web-bot-auth to types

Otherwise we break import as an object is expect while it's only types

Publish v0.0.4

Update web-bot-auth readme with examples

Update readme and rename httpsig as name is taken