Various fixes

fixes by Willy-JL
nfc parser by zacharyweiss
js widget and path globals by jamisonderek

applications/system/js_app/examples/apps/Scripts/path.js

@@ -0,0 +1,9 @@
+let storage = require("storage");
+
+print("script has __dirpath of" + __dirpath);
+print("script has __filepath of" + __filepath);
+if (storage.exists(__dirpath + "/math.js")) {
+    print("math.js exist here.");
+} else {
+    print("math.js does not exist here.");
+}