[C++][Azerothcore] Auto bag sort module for AzerothCore

[silviu20092]

This is a module which lets players sort their bags + merge stackable items into as few stacks as possible (similar to Retail wow's "cleanup bags" feature). This is useful for keeping your bags tidy and organized.
More info on my github repo: https://github.com/silviu20092/mod-autosort

For ease of use and better experience you can use the official addon for the mod: https://github.com/silviu20092/CleanupBags