chore: Add packaging instructions for deb

This commits adds .deb packaging support for all applications in this repository.

asusctl/Cargo.toml

@@ -27,3 +27,15 @@ zbus.workspace = true
 
 [dev-dependencies]
 rog_dbus = { path = "../rog-dbus" }
+
+[package.metadata.deb]
+license-file = ["../LICENSE", "4"]
+extended-description = """\
+An utility for Linux to control many aspects of various ASUS laptops
+but can also be used with non-asus laptops with reduced features."""
+depends = "$auto"
+section = "utility"
+priority = "optional"
+assets = [
+  ["target/release/asusctl", "usr/bin/", "755"],
+]