alphabet → composite Relation

File in seqan3/alphabet	Includes file in seqan3/alphabet/composite
alphabet/all.hpp	alphabet/composite/all.hpp
cigar / alphabet/cigar/cigar.hpp	alphabet_tuple_base.hpp
gap / gapped.hpp	alphabet_variant.hpp
mask / masked.hpp	alphabet_tuple_base.hpp
quality / qualified.hpp	alphabet_tuple_base.hpp
structure / structured_aa.hpp	alphabet_tuple_base.hpp
structure / structured_rna.hpp	alphabet_tuple_base.hpp