Whataa Pandora Versions Save

new feature

1. 「show current activity」can show any current activity name.
2. 「grid line」can show a grid line for debug UI.
3. 「setting」can config some value like shaking threshold and so on.

optimization

1. a new 「view hierarchy」for better display.
2. merge 「select」and 「position」, enhancing the ability to select views.
3. no need any code to init pandora.

In the view hierarchy, id is not unique, such as the items of listView.