DoubleX RMMV Popularized ATB Rate

Lets users alter individual battlers' atb rate by data notetags

*============================================================================
 *    ## Notetag Info                                                         
 *----------------------------------------------------------------------------
 *    # Actor/Class/Weapon/Armor/Enemy/State Notetags:                        
 *      State notetags take the highest priority, followed by enemy, weapon,  
 *      armor, class and actor                                                
 *      1. <operator patb rate: rate>                                         
 *         - Assigns rate to the battler's atb rate via operator              
 *         - operator can be either =, +, -, *, / or %, meaning set to, add   
 *           by, subtract by, multiply by, divide by or modulo by respectively
 *         - All instances of this notetag will be used sequentially          
 *============================================================================
 *    ## Plugin Call Info                                                     
 *----------------------------------------------------------------------------
 *    # Data Actor/Class/Weapon/Armor/Enemy/State manipulations               
 *      1. meta.patb_rate                                                     
 *         - Returns the maximum atb value with the operator stored in        
 *           <operator patb rate: rate> in the form of [opeartor, rate]       
 *      2. meta.patb_rate = [opeartor, rate]                                  
 *         - Sets the atb rate with the operator stored in                    
 *           <operator patb rate: rate> as string operator and Number rate    
 *         - All meta.patb_rate changes can be saved if                       
 *           DoubleX RMMV Dynamic Data is used                                
 *============================================================================

*      v1.00b(GMT 0900 31-1-2016):                                           
 *      1. Fixed user atb rate notetag updates not reflected to the atb rate  
 *      v1.00a(GMT 0500 23-1-2016):                                           
 *      1. Fixed undefined DataManager.this bug                               
 *      2. Fixed not loading this plugin's notetag bug                        
 *      3. Fixed name clashes between function patb_rate and getter patb_rate 
 *      4. Deleted some meaningless, pointless and useless documentations     
 *      5. 1st completed version of this plugin finished                      
 *      v0.00a(GMT 1300 29-11-2015):                                          
 *      1. 1st testing version of this plugin finished

DoubleX(Optional)

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 *      You shalln't claim that this plugin's written by anyone other than    
 *      DoubleX or his aliases                                                
 *      None of the above applies to DoubleX or his aliases