Cloud attacks

There are three cog moves and one toon gag that uses a cloud. Bossbots, Lawbots, Cashbots, Sellbots, and Toons use these attacks.
 * Storm Cloud (used by toons)
 * Liquidate (used by Bloodsucker and Money Bags)
 * Brainstorm (used by Micromanager and Mover & Shaker)
 * Freeze Assets (used by Penny Pincher, Tightwad, and Cold Caller)