Add node modules and new code for release (#57)

Co-authored-by: taakleton <taakleton@users.noreply.github.com>

node_modules/underscore/cjs/isObject.js

@@ -0,0 +1,7 @@
+// Is a given variable an object?
+function isObject(obj) {
+  var type = typeof obj;
+  return type === 'function' || type === 'object' && !!obj;
+}
+
+module.exports = isObject;