HTTP query params are not signed

[iFergal]

siginput should accept query params to be signed when sending a HTTP request. Right now it's just the path of the URL.

fetch and signedFetch (and any other calling functions if there are any) should then pass the query param to be signed.

[pfeairheller]

I will add a link to the HTTP signature headers specification.

[pfeairheller]

https://www.ietf.org/archive/id/draft-ietf-httpbis-message-signatures-19.html