Add matrix_free parameter to make fh compatible with ADNLPModels#75

MohamedLaghdafHABIBOULLAH wants to merge 2 commits intoJuliaSmoothOptimizers:mainJuliaSmoothOptimizers/RegularizedProblems.jl:mainfrom

MohamedLaghdafHABIBOULLAH:fh-compatibiltyMohamedLaghdafHABIBOULLAH/RegularizedProblems.jl:fh-compatibiltyCopy head branch name to clipboard