CivHero big update : Records tracking and other improvements

I've been wanting to add Records Tracking to the game for a while - this update has a Records screen where you can see stats for various game types.

Custom games have an option to reveal extra resources now - an attempt to make starts feel a little less arbitrary.

There are tons of other small fixes and improvements as well, including improvements to AI, world interaction, balance of starts, variety in large maps, and bunch more stuff.

Thanks to everyone providing feedback!