[CGMZ] Core - Version 1.29.0

Hi all, today this plugin was updated to version 1.29.0!

This version adds some new sprite classes to help other [CGMZ] plugins display animated sprites, such as walk and battle sprites. These are mostly meant for windows but may be used elsewhere as well.

This version also added some tracking for the selection window index, which will allow [CGMZ] plugins to know what the previous index was as well.

• Added sprite object for displaying animated walk sprite
• Added sprite object for displaying animated battler sprite
• Added Select Window index tracking