add curl handler pre-invoke-callback to c-libcurl

[hirishh]

Hello,

As proposed in my previous PR (#21613 (comment)), I've implemented a callback just before the curl_easy_perform(handle).
In this way programmers have a way to modify the curl handler as they want without limits.
I've tested it using manual-PetAPI.c unit-test.

Best,

hirish

C Committee: @zhemant (2018/11) @ityuhui (2019/12) @michelealbano (2020/03) @eafer (2024/12)
Also @wing328

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[ityuhui]

LGTM

[wing328]

thanks for the pr, which has been merged

when you've time, can you please pm me via Slack?

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