osm → util Relation

File in include/osmium/osm	Includes file in include/osmium/util
area.hpp	compatibility.hpp
crc.hpp	endian.hpp
object.hpp	misc.hpp
object_comparisons.hpp	misc.hpp
relation.hpp	compatibility.hpp
timestamp.hpp	compatibility.hpp
timestamp.hpp	minmax.hpp
types_from_string.hpp	cast.hpp