Windows support

[petros]

This may also work on Windows, but I have tested it.

We have a specific OS use:

drem/src/main.rs

Line 5 in c1040fd

use std::os::unix::fs::PermissionsExt;

which may need a conditional and an equivalent for Windows operating systems. Speculating here. Needs to be tested.

I am only adding the good first issue Good for newcomers label for folks that use Rust on Windows, but please, anyone who knows or wants to find out is welcome to try.