Allow flag to disable `servers` check (request)

[sid6mathur]

While I appreciate the warning message added in Issue 882, it will be awesome to introduce an option flag to disable validation of the Host or hostname of the request URL matching one of the servers listed in the OAS3.0 spec entirely.

Thank you for this wonderul package! :)
-Sid

[sid6mathur]

Thanks so much, @jamietanna :)

[jamietanna]

You're welcome, thanks for the one-off donation 💜