Add multi coast sector and destination support in Parser

-New method signature for: Parser.parse(order, country = {})
  -get_country() supports new signature

-get_destination(order_array) now returns {bul: :sc} for Bul(sc)

-get_sector(order_array) also supports multi coast string orders like get_destination

-parser_spec tests for multi coast MOVE orders, fixes a typo