0.7.0-rc.1 (#75)

* Initial sketch

* Remove trait. Update test

* Do not generate empty serde attributes

* Fix spec and root server

* Fix sendgrid send_plain_text (#65)

* Use url() to get correct url

* Clean up method

* Add test

* Bump version

* Fix empty serde attributes

* Fix chrono call

* Fix deprecation

* Chrono fix

* Align spec urls with previously used urls

* Update drive traits to use url method

* Fmt

* Fix intro docs for client with multiple root servers

* Fix created param format for GitHub workflow listing

* Rebuild

* Bump h2

* Bump openssl

* Fix h2 ck

* Add openssl-macros

* Comment and derive cleanup

* Derive default on fully qualified path

* Bump base64

* Bump reqwest-middleware

* Remove default opentel feature

* Update trait responses

* Fmt

* Update versions

* Add changelog

* Add headers to errors

* Rust indicators

* Add change not about default features

* Add redirect policy to remaining clients

* Re-export reqwest types

* Clarify response values

* Clarify new env fns

* Clarify docs for constructors and panics

* Remove tokio full feature

* Fix Google clients with command urls

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Co-authored-by: Adam Sunderland <[email protected]>