Nerf Syndi Crossbow

Doubles the time it takes a syndi crossbow to recharge. Presently, it regains 1 shot per 5 process() ticks, which in my testing came out to about 5 seconds, and thus 25 seconds to fully recharge to its max. Given that it also ALWAYS causes a knockdown on what it hits, it is a very effective lockdown weapon instead of the stealth weapon it is (I feel) intended to be. This change simply doubles the time it takes to recharge.