(wip) Binary Type Support

[Gaelik-git]

The goal is to support binary and file format for download and upload on the rust client generator
Ideally it would support both reqwest (async and not async) and hyper

#18117

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[wing328]

Thanks for the PR but your commit (as shown in the Commits tab) is not linked to your Github account, which means this PR won't count as your contribution in https://github.com/OpenAPITools/openapi-generator/graphs/contributors.

Let me know if you need help fixing it.

Ref: https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-can-i-update-commits-that-are-not-linked-to-my-github-account

[wing328]

when you've time, can you please review the test failure: https://github.com/OpenAPITools/openapi-generator/actions/runs/9113591918/job/25055478727?pr=18682 ?