feat: add rust-script

external/rust-script/tests/data/script-full-line-without-main.rs

@@ -0,0 +1,11 @@
+#!/usr/bin/env rust-script
+/// This is merged into a default manifest in order to form the full package manifest:
+///
+/// ```cargo
+/// [dependencies]
+/// boolinator = "=0.1.0"
+/// ```
+use boolinator::Boolinator;
+
+println!("--output--");
+println!("{:?}", true.as_some(1));