New Feature/Option: Infinite base sizes

Default: OFF
You can build bases of any size. (even bigger than 6x6)
You can scroll the Base View with drag scrolling, according to the drag scrolling settings.

+ We can now dismantle in Build Facilities State
+ We now see the name of the facility under cursor in Build Facilities State and in Place Facility State

If you want to test this feature, here is a good savegame for that:
http://pastelink.me/dl/42f60d
(that big base will be attacked shortly after you load)