Make "turns" first class citizens.

[simlmx]

Overview

"Turns" effectively become first class citizens.
We add builtin utils and a nicer DevX to begin/end player turns and deal with turn expiration.

Usage

In the game definition:

turns.begin(userId, {
  expiresIn: 10000
  boardMoveOnExpire: ["someboardMove"],
});

In the UI:

const { itsTheirTurn, beganAt, expiresAt } = useUserTurn(userId);

Changes

• We put the turn info (begin and expiration time) in meta
• Refactor the Random object with a cleaner API
• Remove game1-v2.3.0 (effectively breaking support to 2.3.0)
• Add new 3.0.0 test game (FIXME change the number from 2.7.0 to 3.0.0)
• Fix typing for playerboard: it's either an object (of type defined by the game) or null (when there is none or for spectators)
• Refactor dev-server
• Show turn expiration in dev-server