[CGMZ] Enemy Upgrade - Version Alpha R4

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

This version adds "special" versions of enemies. This is a way for one enemy to automatically take the place of another enemy. This allows you to make rare collectible versions of enemies, or just a way to randomly increase the difficulty (and rewards!) of battle when a special version of the enemy appears.

You provide the special enemy id and the chance it has to replace the normal enemy, and then the enemy has that chance of being replaced whenever it is encountered.

These are separate enemies in the database, so your special enemies can have their own move set, drops, stats, etc.

• Added special enemy version and chance to encounter them