Sectors preview

Still working on the UI stuff, but here's a preview of what I have planned.  The idea for planets with regions is to display the name, special icons (such as special resources or fertility or others), list of regions, then finally the current project and "project button".  I'm thinking of combining the project button with current project into one item.  But at least you can see where I'm going with this.  Individual sectors won't have a scrollbar inside them, their entire information will be displayed.  So there's just one scrollbar to scroll through all sectors in a system.