Speedup boundary geometry initialization
Initializing the boundary geometry is quite time consuming. Instead of running the initialization again and again for every run, we should save the computed data-structures to a file. This should include:
- the voxel-mesh
- the two spanning corners
- the number of voxels for x,y,z
- the voxel ID's
- triangle ID to voxel ID mapping
- triangle mesh
- points
- triangles defined point ID's
- triangle normal