Added in new map and defined map with main.asm, constants.asm, map_headers.asm, second_map_headers.asm and changed name of map file to Starter City.blk. StarterCity now has its own .asm file as well
Fixed Map_Headers and Second_MapHeaders for StarterCity. Changed beginning map to StarterCity. Resets game after intro.
fix Starter City

* fix wrong number of callbacks

* undelete one too many map headers

* insert filler bytes because routes have connections that otherwise
take up space
Merge branch 'map-startercity'.

This is the new starting map.

fixes #26