It does, yes!

It's called "Recruit any NPC - Transform NPC Into Playable Character - Make Full Custom Character Party - No party limit - Resurrect Dead" on Nexus Mods (wasn't sure if I could link that here).
Version 1.3.2.0 removed functionality with "true" multiplayer character/wardrobe feature, but you can still recruit/create characters via a spell.
Version 1.2.1.0 allows for multiplayer/wardrobe functionality, which is what I'm currently using, but it seems like it was buggy, hence the update.
This doesn't solve the issue entirely, especially with the chance of bugs that might be game-breaking, but I appreciate the author's hard work on trying to provide an alternative where Larian has fallen short. Larian should definitely be the one to implement this feature. I say that with much respect and appreciation for the rest of the game!