Request elevated privileges using application manifest

[Kostassoid]

Currently the app will notify the user if the application is not running with elevated privileges. A better UX could be to actually request these privileges automatically using application manifests.

Sadly, rust does not currently support this. Relevant ticket in rust-lang: rust-lang/rfcs#721

There's a way to workaround that: https://crates.io/crates/winres
Should be simple enough to do for local builds. The potential challenge is the CI.