The reason behind that change is that auxiliary variables,
like a file handle, should not be too visible. inpfile was
a good description, but we're handling only one file and there
is no need to use a descriptive variable name for it in every function.
It's enough that is used in write_calculix_input_file
Signed-off-by: Przemo Firszt <przemo@firszt.eu>
Also, there is no need to print material parameters to the console.
User can see that info in dialog box, in .inp file and it's also printed
to console after material has been set.
Signed-off-by: Przemo Firszt <przemo@firszt.eu>