[CGMZ] Animated Battle Backs - Version Alpha R4

Hi all, today this plugin was updated to version AlphaR4!

This version adds scrolling parallax battlebacks. Since the normal battle back is made up of two images, the way scrolling works is it will turn the first battleback image into the scrolling one. You can then either set an empty image for the second battleback image, or use it as an overlay (for example, if you want cliffs over a scrolling ocean background, etc). See below for a gif example:

• Added scrolling parallax battlebacks and various supporting options