Multiple Protagonists v2.3

- Fixed crash on startup for some users (presumably users who don't have a save folder)

- Updated Script Compatibility guide step 1

- Added compatibility for mej's Follow Pokemon script (added a wrong fix before)

- Fixed bug where \PN0 wouldn't work if pbSwitchCharacter had not been called yet in-game

- Fixed gsubPN error when compiling trainer events (must be manually fixed following lines 100-102 of this script) (June 30, 2020)

WARNING! v2.0 is not compatible with the previous versions. This means that you MUST start a new save for testing if you update this script.
In other words, if you've already released a game using an earlier version of this script, then you cannot update to v2.0 without ruining players' old saves.
- Revamped internal structure of how character data is stored
- Added trading between characters (examples in script guide)
> Trade Pokemon 1 for 1 (just like trading with an NPC)
> Send Pokemon from one character to another
- Added script guide section on Script Compatibility
> Includes fix to compatibility issue with mej71's Following Pokemon script
- Added \PN0 - \PN7 to Show Text boxes and end speeches in battle (look in script guide for installation)

- Added registering/battling other characters (look in script guide for examples)

- Fixed vehicle sprites not updating on character switch

- Fixed game crash on startup due to map name

- Added support for \PN0 - \PN7
- Fixed issues with dependency events not updating properly
- Fixed Pokedex data not being stored correctly