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

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

node_modules/underscore/cjs/isMatch.js

@@ -0,0 +1,15 @@
+var keys = require('./keys.js');
+
+// Returns whether an object has a given set of `key:value` pairs.
+function isMatch(object, attrs) {
+  var _keys = keys(attrs), length = _keys.length;
+  if (object == null) return !length;
+  var obj = Object(object);
+  for (var i = 0; i < length; i++) {
+    var key = _keys[i];
+    if (attrs[key] !== obj[key] || !(key in obj)) return false;
+  }
+  return true;
+}
+
+module.exports = isMatch;