Added notification panel

Added notification panel which notifies you when a worker is attempting to work on a station that is missing an ingredient.

This will help new players start to grasp how to make a new pizza, as well as helping players make sure their workers are working, and if they need something to do more work.

Added customer Michael, and split customers into 3 tables.

Now the workflow should be more smooth with more tickets available to work on at the same time.

Character speed was increased.

Lots of small logic tweaks fixing some bugs like:
-Mushroom crate not subtracting quantity

-Worker standing idle at cheese station unnecessarily

-Trays disappearing if station is changed while carrying one