jwt: move the scope from assertion payload to the request parameter as in RFC7521

[mdarii]

This PR adjust the jwt package to send scopes as request parameter as described in the RFC https://datatracker.ietf.org/doc/html/rfc7521#section-4.1
#461

this pr also adds support for multiple audiences as described in RFC 7519.

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Patch Set 1:

(1 comment)

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Patch Set 1:

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Patch Set 5:

(1 comment)

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Message from Sean Liao:

Patch Set 5: Hold+1

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