WIP: Alive character management (Patreon)

It's been a bit tricky but I managed to get the connection between Alive and the new UI. This gave me so many headaches throughout last year but it's looking good now.

CHARACTER MANAGEMENT

For the new UI I wanted a simpler and more powerful way to select & customize different characters. I added a person picker at the top of the UI. I kept it at 3 models max + a player avatar. 1,2,3 are the first 3 models in the scene. P is a special model, the player's avatar. When a character is selected it will have a halo above their head to indicate that. Actions from the UI will apply to the selected character.