dl → alpaqa Relation

File in src/interop/dl	Includes file in src/alpaqa
include / alpaqa / dl / dl-problem.hpp	include / alpaqa / config / config.hpp
include / alpaqa / dl / dl-problem.hpp	include / alpaqa / problem / box-constr-problem.hpp
include / alpaqa / dl / dl-problem.hpp	include / alpaqa / problem / sparsity.hpp
src / dl-problem.cpp	include / alpaqa / config / config.hpp
src / dl-problem.cpp	include / alpaqa / problem / sparsity.hpp