/**
 * The list of all constants in B3.
 *
 * ## Core
 * 
 * NAME                | VALUE      
 * ------------------- | ----------------------
 * VERSION             | depends on the version
 *                     |
 * **Node State**      |
 * SUCCESS             | 1          
 * FAILURE             | 2          
 * RUNNING             | 3          
 * ERROR               | 4          
 *                     |
 * **Node categories** |
 * COMPOSITE           | 'composite'
 * DECORATOR           | 'decorator'
 * ACTION              | 'action'   
 * CONDITION           | 'condition'
 * 
 *
 * @module constants
 * @class constants
**/