It's Day 3, and now you can know what's happening around you

So I finally implemented a working messaging system.    Basically:  events can cause messages.  Messages are collected by the game object.  Once a turn is complete, messages are distributed to all the entities on the map.    Player and Non-Player entities have message queues, so I may let the AI use that data eventually.

Next up, items!  There aren't any, yet.   I have an equipment component from the Roguelike Tutorial, and I'm going to work from there to a more comprehensive inventory (stuff you're carrying) and equipment (stuff you're using) system.