[RMMZ] Horizontal Scrolling [v1.06]

v1.00 - Initial Release
v1.06 - Bugfix

This plugin adds left/right arrows for windows and adds scrolling horizontally to scrollable horizontal windows

A horizontal window is a any window with only 1 row

For now the only windows that utilize this plugin are windows that overwrite the following function via it's own added plugin file

 ~WINDOW_NAME_GOES_HERE~.prototype.numVisibleCols = function() {
     return this.maxCols();
 };

 Example:

 Window_ShopCommand.prototype.numVisibleCols = function() {
     return 2;
 };

Doing that would then make the Shop Command Window only show 2 rows but be then be scrollable for it's full command list