Added maps data file

Starting point for map in game; proof-of-concept printed in console
through street.dart . Mira Mesh test street updated to include
additional fields.
Added WorldMap class, map partially draws

When map is selected in UI, map window pops up with region name and
draws map canvas: bg map image, streets drawn, street names drawn (but
at the wrong angle). Does not refresh on new street load.
Some minor unused code removed.
Map drawing improvements

Street names draw properly, added graphics and texts for exits to other
regions. Added better formatting for fonts. Fixed minor redraw bug.
Canvas drawing currently messy.
added workaround to lines on top of text in map
Map drawing mostly complete

Current street is noted in map; added comments, improved readability.
Small performance improvements in map drawing. Next todo: create TP menu
when street is clicked on.
broke out the different street components into seperate class files and added a star to the current street on the map
merge with dev
fix issue with signposts