Add ReplaceFileW

[zlonast]

haskell/cabal#10938

Description

Replaces one file with another file, with the option of creating a backup copy of the original file. The replacement file assumes the name of the replaced file and its identity.

Motivation and Context

Try fix cabal issue

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• I have updated the documentation accordingly.
• I have not added a new Haskell dependency.
• I have included a changelog entry.
• I have not modified the version of the package in Win32.cabal.

[zlonast]

@Mistuke Hi, could you take a look at this pull request? :)

[Mistuke]

Thanks, LGTM, sorry for the slow response, gmail seems to not pop up the notification unless I'm @mentioned