return characters from C properly
return characters from C properly

Characters return from C should have Cchar type in Julia
since they are different than Julia's Char (single-byte vs multi-byte in current implementation).
Julia can convert them easily if types are specified properly.

IntelLabs/ParallelAccelerator.jl,JuliaPackageMirrors/ParallelAccelerator.jl,malekbr/julia-to-tiramisu