Copy of fields taking too long when splitting meshes using generate_fractures #48
Description
The copy of fields from the input mesh to the new fracture meshes is taking too long when using generate_fractures in mesh_doctor.
When performing this copy, a mapping of cells is created between the input mesh and the fracture mesh generated.
This mapping is inefficient and can be removed because the information needed to map the input mesh to the fracture mesh can be deduced from the methods already coded.