lqn → util Relation

File in include/line/lang/lqn	Includes file in include/line/util
lqn_builder.h	error.h
lqn_reader.h	decimal.h
lqn_reader.h	error.h
lqn_reader.h	xml.h
lqn_struct.h	error.h
lqn_struct.h	matrix.h
lqn_writer.h	error.h
lqn_writer.h	xml.h