DoubleX RMMV Popularized ATB CTB

Lets users switch the battle system to mimic charge turn battle

Configurations

* @param show_battle_system_window
 * @desc Setups a window in battle indicating whether atb or ctb's used if
 *       show_battle_system_window is set as true
 * @default true
 *
 * @param battle_system_window_x
 * @desc Sets the x position of the battle system indicator window as
 *       battle_system_window_x
 * @default 0
 *
 * @param battle_system_window_y
 * @desc Sets the y position of the battle system indicator window as
 *       battle_system_window_y
 * @default 108
 *
 * @param battle_system_window_width
 * @desc Sets the width of the battle system indicator window as
 *       battle_system_window_width
 * @default 220
 *
 * @param battle_system_window_height
 * @desc Sets the height of the battle system indicator window as
 *       battle_system_window_height
 * @default 60
 *
 * @param battle_system_text_size
 * @desc Sets the size of the text shown in the battle system indicator window
 *       as battle_system_text_size
 * @default 20
 *
 * @param battle_system_text_x
 * @desc Sets the x position of the text shown in the battle system indicator
 *       window as battle_system_text_x
 * @default 0
 *
 * @param battle_system_text_y
 * @desc Sets the y position of the text shown in the battle system indicator
 *       window as battle_system_text_y
 * @default -8
 *
 * @param atb_battle_system_text
 * @desc Sets the text shown in a window indicating atb's used in battle as
 *       atb_battle_system_text
 * @default Active Time Battle
 *
 * @param ctb_battle_system_text
 * @desc Sets the text shown in a window indicating ctb's used in battle as
 *       ctb_battle_system_text
 * @default Charge Turn Battle

Plugin Calls

*    # Configuration manipulations                                           
 *      1. $gameSystem.patb.param                                             
 *         - Returns the value of param listed in the plugin manager          
 *      2. $gameSystem.patb.param = val                                       
 *         - Sets the value of param listed in the plugin manager as val      
 *         - All $gameSystem.patb.param changes will be saved

*      v1.00c(GMT 0500 3-7-2016):                                            
 *      1. Fixed below configuration changes not taking place in same battle: 
 *         - battle_system_window_x                                           
 *         - battle_system_window_y                                           
 *         - battle_system_window_width                                       
 *         - battle_system_window_height                                      
 *         - battle_system_text_size                                          
 *         - battle_system_text_x                                             
 *         - battle_system_text_y                                             
 *      2. Increased this plugin's effectiveness, efficiency and flexibility  
 *      v1.00b(GMT 1000 24-1-2016):                                           
 *      1. Fixed not clearing old text before showing new ones bug            
 *      2. Increased this plugin's compactness, readability and simplicity    
 *      v1.00a(GMT 1400 23-1-2016):                                           
 *      1. 1st completed version of this plugin finished

DoubleX(Optional)

*      You shall keep this plugin's Plugin Info part's contents intact       
 *      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