Adds a bunch of blank Pixelmon items to the game for use by servers and modpacks.
Servers/modpacks can use these items to add new megastones to Pixelmon. These items can be held by pokemon, but do not do anything on their own. It is up to servers/modpacks to make pokemon interact with them.
For example usage, download the provided example Datapack + Resourcepack. Said example implements Mega Bronzong.
