v21.1 Mix-And-Mega 1.4

Now that Lucidious89 has begun to dump v21.1 versions of all their plugins, I'm able to work on making my plugins compatible with them. The only change that is required for Mix-and-Mega is making sure that the plugin knows when to use the Enhanced Battle UI version of the Mega Evolution/Primal Reversion databox (and making sure that the Primal icons are based on item rather than species of the user).

This is an update to make this resource compatible with B2W2 Bag Screen. This actually only requires a change to the meta.txt file, as the B2W2 Bag Screen seems - at least in the ways relevant to Mix-and-Mega - to be a largely cosmetic change.

• Fixed a typo that was causing games to fail upon reloading PBS data (it was literally one character in a comment in the type-adjustment code. UTF-8 encoding).
• Added the Ogerpon masks to the list of non-Mega-Stone form-changing items. Settings exist for whether non-Ogerpon Pokémon should have their ability changed by the masks or not, and for whether the masks should boost the damage output of non-Ogerpon Pokémon.

• Actually got the multiple-Megas-per-battle limit working properly
• Alternate message for non-canon Primals
• Change to how this plugin interacts with a currently-unreleased plugin.

This update entails:

• adding the Timespace Crystals to the list of non-Mega-Stone items that can activate this mechanic
• changing the Primal Orbs and Rusted Armors to behave properly (rather than acting like Mega Stones). This includes changing the in-battle UI to match the Primal Orb your Pokémon is holding, rather than the species.
• adding a setting that allows the Rusted Armors to change the move Iron Head on any Pokémon.