io → concept Relation

File in seqan3/io	Includes file in seqan3/utility/concept
detail / magic_header.hpp	exposition_only / core_language.hpp
detail / misc_input.hpp	exposition_only / core_language.hpp
detail / misc_output.hpp	exposition_only / core_language.hpp
sam_file / sam_tag_dictionary.hpp	exposition_only / core_language.hpp