Improved SafeEvent.Raise methods by eliding taking a local variable of the event handler. The mere fact these are methods and the event handler is an immutable parameter already protects us from the case when the subscribers change in a multi-threaded scenario.
Improved safety of WinFormSpriteInterface.LoadImages by rolling back partial state changes in the event of exceptions and throwing an AggregateException once all loading tasks have run to completion to ensure no tasks get stuck due to waitng on loading from other tasks.

Also improved performance in CreatePair by generating the left image outside the lock to reduce contention.
Added Lily panic animations by Bot-chan.
Fixed some bugs in WinFormSpriteInterface.CreatePair regarding the right image. This also needs to be checked to see if another task is loading it and therefore waited upon.
Added Seabreeze by Bot-chan.