Package Management WiP, Tweaks
#CHANGE: Fonts rendered in SharpAlpha mode are now a little smoother.
#CHANGE: The DualityUpdater application no longer attempts to update itself.
#CHANGE: The PackageManager is no longer verifying its packages on startup, since this would result in a 10 MB download when first starting Duality. Instead, it will now do lazy-updates when needed.
#ADD: Added NuGet package specifications for all currently existing Duality modules.