A class that implements a Texture Atlas. Supported features: The atlas file can be a PVRTC, PNG or any other format supported by Quads can be updated in runtime Quads can be added in runtime Quads can be removed in runtime Quads can be re-ordered in runtime The capacity can be increased or decreased in runtime OpenGL component: V3F, C4B, T2F. The quads are rendered using an OpenGL ES VBO. To render the quads using an interleaved vertex array list, you should modify the ccConfig.h file.