Add extracted source directory and README navigation

extracted-source/node_modules/xmlbuilder/lib/DocumentPosition.js

@@ -0,0 +1,12 @@
+// Generated by CoffeeScript 2.4.1
+(function() {
+  module.exports = {
+    Disconnected: 1,
+    Preceding: 2,
+    Following: 4,
+    Contains: 8,
+    ContainedBy: 16,
+    ImplementationSpecific: 32
+  };
+
+}).call(this);