minimap rework

[kmarad]

Map & minimap coexist with a lot of common points, but a few differences. That make them complementary and repetitive.
On the main map you can see visited areas, natural resources, and on the minimap you can see edges, and local resources.

I think that they should be merged, so that there is only one map which shows everything.

[shubla]

Managing makers definitely requires a separate map window, but I agree that some of the functionalities could be exported to minimap.