Computation times

00:17.392 total execution time for 3 files from examples/02-Performance-Improvements:

Example	Time	Mem (MB)
Reduce model size by using the mesh external layer for result and mesh extraction (01-mesh-external-layer.py)	00:08.059	0.0
Validate external layer results with the full mesh (03-mesh-external-layer-compare.py)	00:05.524	0.0
Reduce model size by using the mesh skin for result and mesh extraction (02-mesh-skin.py)	00:03.809	0.0