Loosen up setw formatting
I ran into a problem with ExportBoundaryConditions.cxx when I created a mesh that contained 10,000,000 or more elements. The cell indices of some elements are too large to be printed properly in the AdH BC file because of formatting that restricts many fields to only 8 characters wide. See lines 137, 149, 156, 159, and 186
AdH itself doesn't have any character width restrictions when reading the BC file, so the character width restrictions in ExportBoundaryCondition.cxx only serve to make the BC file look more aesthetic. I propose fixing the formatting by replacing << " " << std::setw(8) <<
with << "\t" <<
Here are my fixes if you wish to incorporate them into your repo ExportBoundaryConditions.cxx