Some changes on Readme file to rename the project as Vega SDK.
Changed the color and name of the logo file.
Changed the folder structure of the scripts.
Refactored the drawable table, now a simple drawable() function creates a new table instance.
Removed the setBackground function of the drawable table, now the user can set the background with the 'background' field.
Created a list table to be used in many of the collections of the SDK, using now with the drawables children list.