add a script for spider monkey

test/de/inetsoftware/jwebassembly/SpiderMonkeyTest.js

@@ -0,0 +1,21 @@
+#!/usr/bin/env node
+
+var filename = '{test.wasm}';
+var ret = read(filename, "binary");
+
+function instantiate(bytes, imports) {
+  return WebAssembly.compile(bytes).then(
+    m => new WebAssembly.Instance(m, imports), reason => console.log(reason) );
+}
+
+var dependencies = {
+    "global": {},
+    "env": {}
+};
+dependencies["global.Math"] = Math;
+
+
+instantiate( ret, dependencies ).then( 
+  instance => console.log( instance.exports[scriptArgs[0]]( scriptArgs.slice(1) ) ),
+  reason => console.log(reason)
+);