Delete the extra files from root of project

[zeel-codder]

Need to remove extra code files from the root of the project( Like: https://github.com/zeel-codder/Recursion-Hub/blob/main/FindTheTownJudge.md)

[ashvaneetk]

@zeel-codder Assign me this issue. I will create a function that accepts a projectRoot path as an argument and removes files in the root directory with extensions not listed in allowedExtensions.
It relies on the library, requiring C++17 or later for compilation.