highlight "new" goods

[philihp]

the idea would be that, for a player, highlight all the things that were touched/moved since his last turn. so like in the short mode, if i'm red, then and blue gets coins, and green gets sheep, i would have a "glowy" coin and a "glowy" sheep, in addition to what i had at the end of my last turn.

i don't know if this would be a good idea... open to thoughts.

it's certainly probably not the easiest thing to code right now, since i just have a count of how many grain the player has, instead of an object for each grain chit. might require big changes so that this doesn't add too much complication.