Import can be done from .script files generated by LogTrak software or
from .asd files generated by SmartTrak and LogTrak export option.
This code was writen in C, and has just been "ported" to some extent to
C++, so it can work with recent rework of Subsurface to C++.
I'm not a C++ guy, so this is mostly C with some make-up.
Signed-off-by: Salvador Cuñat <salvador.cunat@gmail.com>
