Use std::filesystem::path in Platform.h

[xis19]

Since C++17 had introduced built-in standard path library, it is unnecessary to have custom path manipulation code to FoundationDB.

[yunimoo]

Hi, I'm interested in this issue and wanted to reach out to see if it was fine if I can work on this?

[xis19]

@yunimoo You can start contributing by cloning the repository and create pull requests.

[giorgiozoppi]

I also can help

[yunimoo]

I also can help

Thank you. I have some work(?) done on it and can publish a draft PR when I get the chance. Not sure if I'm going in the right direction but could use some guidance / suggestions

[giorgiozoppi]

Sure, happy to lint and review you code using C++ code guidelines.

[giorgiozoppi]

I have a question @xis19 are u the mantainer now?

[xis19]

I have a question @xis19 are u the mantainer now?

Not really but feel free to ask me anything. I will redirect you to corresponding people if I can't answer.