Separate out the wasm test into its own feature/binary.

src/bin_wasm_test.rs

@@ -0,0 +1,12 @@
+use wasm::wasm_parse_org;
+
+mod error;
+mod wasm;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let body = include_str!("/tmp/test.org");
+    let result = wasm_parse_org(body);
+
+    println!("{}", serde_json::to_string(&result)?);
+    Ok(())
+}