map_block_dumper - create these .blk files

TODO: spit out new INCBIN lines to take advantage of these files.

hg-commit-id: f06654f42d78

maps/route22.blk

@@ -0,0 +1,3 @@
+ 



!(,,,,,,+WWW*,;hi$WWWWWW%/(,)7}}:}~UUUUUUUUUU$W)UUUUUU>;/b
+
+)/ed()N

)11VwwwUU()N
>)$%/()UUUUUUUUUUUUUUUUUU(,??????????????????,