OpenWerewolf 0.6-beta

Changelog:

• Support for up to 15 players
• Added survivor, escort and jester
• Added support for building Docker images
• Rewrote all client scripts in Typescript to add typesafety
• Refactored implementation on roles to make adding new roles to Classic easy
• Experimental local multiplayer mode
• Numerous bug fixes: handling SQL disconnects, ensuring colour consistency across browsers