New directory structure

Proposed structure that I am working on:

    /my_new_game_project
     /proj.ios
     /proj.android
     /libs
     /published
       /iOS
         /mostly same directory structure as /shared/Resources
       /Android
         /mostly same directory structure as /shared/Resources
     /shared
       /Classes
       /Resources
         /images
         /interface
         /js
         /sounds
         project.ccbproj

My thinking for the folder structure is that I want someone who comes the project to immediately know where everything is.  `proj.ios/` and `proj.android/` let's someone know that is where the platform wrappers are.  `libs/` is where any external libraries will be.

`shared/` is where the common code (C++ or JS) and assets will live.  And `published/` will be where Cocosbuilder puts files when publishing the CCB project.  I did this to avoid confusing myself/others with duplicated files in the `/shared/Resources`.  Since those folders really aren't shared, I didn't want to leave them in the `shared/` folder.  I also used the images, interface, js, and sounds directories similar to how the sample [CocosDragonJS project](https://github.com/minggo/cocos2d-js-tests/tree/for-cocos2dx/games/CocosDragonJS/Source) does.  It allows me to add the `published/iOS/` folders to the xCode project as Folder References.  I had problems with the Xcode project missing new files as they were added and published and the Folder References helped solve that for me.  Having `/published/Android` makes the copy to the Android assets folder straight forward too.

I have not figured out what to do with the shared Cocosplayer resource files yet, but once those are  in place, the current `Resources/` will go away too.