Add the final icon in SVG and ICO (with the full size ramp) format

Supersedes #139

Co-authored-by: Whitecat18 <smukx@5mukx.site>

Author: DHowett

assets/edit.ico

@@ -8,6 +8,7 @@ fn main() {
             .set_manifest_file("src/bin/edit/edit.exe.manifest")
             .set("FileDescription", "Microsoft Edit")
             .set("LegalCopyright", "© Microsoft Corporation. All rights reserved.")
+            .set_icon("assets/edit.ico")
             .compile()
             .unwrap();
     }