[FEATURE] Retry on failed proxy request

[dwisiswant0]

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[SantaLaMuerte]

@dwisiswant0 Extra needed function . if request not give a response after setted timeout it repeated by another proxy - for example..

-s (sync) - Maybe that function can be improved to check is request failed (no response)

And how to not modify headers of original response from my parser (for example)? Such as x forwarded for and etc

Thanks for Mubeng tool, Dev and contributors!