Added "Add to party"

An user in itch.io reported to be confused about adding the character with the command later, which a need for extended use, having to manage the variables. I added an option to "add to party" once it is created.
Besides that, I also fixed a couple of errata that could easily lead into crash depending on use.
I also took the chance to remove redundancy, there were three commands for two options, so I made them one single argument in the basic command.

Updated compatibility

After the release of the update of the base plugin CopyActor, a update to this plugin is required for compatibility reasons.
I took this chance to optimize the plugin commands, albeit it creates deprecated content.
Regardless it's now good with both CopyActor 1.0.0 and any newer versions.

Updated

It took me way less than I had anticipated, but I added the functionality I wanted to add from start, and found a lot of use cases that it could have broken the game.

Demo and plugin finished

Despite how simple it looks, it actually took quite a while. I also plan on changing the generation in the future to enable more functionality of it, but for now, enjoy 1.0.0!