cred: isolate scripts in WASI and move RSA signing to AWS-LC

host/cred-script/vendor/rquickjs-sys/quickjs/examples/test_fib.js

@@ -0,0 +1,8 @@
+/* example of JS module importing a C module */
+import * as os from "qjs:os";
+
+const isWin = os.platform === 'win32';
+const { fib } = await import(`./fib.${isWin ? 'dll' : 'so'}`);
+
+console.log("Hello World");
+console.log("fib(10)=", fib(10));