Moves the Mind

Adds interop between Hexcasting and the Carpetmod /player command, allowing players to use Hexcasting to manipulate the "fakeplayers" and to summon their own.

Currently only implements control patterns to set various properties of a given fakeplayer, and affords only one hex-summoned fake per real player. Future updates intend to give players the ability to summon multiple based on configuration, getters for these states for better flow control, and more secure interactions between fakes that belong to the same or different real players.