feat: add rust-script

external/rust-script/tests/data/templates/boolinate.rs

@@ -0,0 +1,9 @@
+// cargo-deps: boolinator="0.1.0"
+#{prelude}
+
+extern crate boolinator;
+use boolinator::Boolinator;
+
+fn main() {
+    println!("{:?}", Boolinator::as_option({#{script}}));
+}