Modify raw examples: use multiline Ruby replacement macros

rawEx/bayesian/likelihood_sampling.py

rawEx/ff/BarLorentz.py

rawEx/ff/Bipyramid4.py

rawEx/ff/Box.py

rawEx/ff/CantellatedCube.py

rawEx/ff/Cone.py

rawEx/ff/CosineRippleBox.py

rawEx/ff/Cylinder.py

rawEx/ff/Dodecahedron.py

rawEx/ff/EllipsoidalCylinder.py

rawEx/ff/HemiEllipsoid.py

rawEx/ff/HorizontalCylinder.py

rawEx/ff/Icosahedron.py

rawEx/ff/PlatonicOctahedron.py

rawEx/ff/PlatonicTetrahedron.py

rawEx/ff/Prism3.py

rawEx/ff/Prism6.py

rawEx/ff/Pyramid2.py

rawEx/ff/Pyramid3.py

rawEx/ff/Pyramid4.py