PlayMaker NGUI Scripts

New actions for Playmaker, centered around NGUI and its components. These scripts provide Playmaker action functionality for handling events, managing components, and setting values of NGUI items.

A list of what is included:
* Scene Pre-Loader with Progressbar - sends all scene objects to the GPU to pre-render the scene on load
* Asset Bundles - Pro Only by request, Asset Bundle creation, loading, and unloading
* HUD Text - Use NGUI HudText to display text over objects * Fade NGUI objects in and out * Hook any NGUI event as a Playmaker transition event (onclick, OnSliderChanged, etc)
* Store the value of an Input textbox
* Change the text of a Label
* Store the value of a Slider or Progressbar
* Set the value of a Slider or Progressbar
* Set a UIButton or UIImageButton to Enabled or Disabled
* Apply a label to a Slider or Progressbar, with a text display of their value
* Handle Click, Hover, Drag-Drop, Tooltip Events
* Demo Scenes Included
* Many more...