CPP: Windows: GetDiskFreeSpaceExW

Retrieves information about the amount of space that is available on a disk volume, which is the total amount of space, the total amount of free space, and the total amount of free space available to the user that is associated with the calling thread.

Notes:
- Tested using Visual Studio 2022 (17.2.6) C++ Windows Console template
Reference(s):
https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getdiskfreespaceexw