Fixes for GCC 7 compilation of Coin3D (fixes ATLASVPONE-371)
GCC 7 got stricter and Coin3D fails compiling due to pointers initialization. This commit only sets a new version of the Coin3D sources, which have been fixed.
Thanks to @wlampl for the fixes.
This fixes ATLASVPONE-371
Edited by Riccardo Maria Bianchi