Py-vapid

* allow hyphens in sub domains (96)
* Fix argument declaration (95)
* use better host validation(92)
* do not enforce dot in sub claim email host part (90)

Chore

* update libraries, remove nose

Bug

* fix JWT padding (Thanks JohnDoee) https://github.com/web-push-libs/vapid/issues/81

* Default to RFC 8282 Vapid by default
* Added Code of Conduct

* Update cryptography dependency
* Added init from string