Is_sudo

Checks if program is running as sudo in unix systems, or using admin permission in windows.

Usage

```rust use issudo::check; use issudo::RunningAs;

fn main() { let runningas: RunningAs = issudo::check();

match running_as {
    RunningAs::Root => println!("Running as root"),
    RunningAs::User => println!("Running as user"),
}

} ```