Added Playmaker Integration:
-Organised the files in the extension by type. i.e. Scripts, Scenes, etc. subfolders.
-Provided a readme text file which explains how to use the extension
-Provided an example scene which demonstrate some common usage scenarios
-The code follows the Fungus coding standard and commented out code was removed.
-The .unitypackage is be in the fungus/Assets/Fungus/Integrations folder