Created subdirectory for OpenCSG compatibility module
Added first implementation of OpenCSG compatibility module
Added Surface character array name class attribute
Added Surface name attributes to OpenCSG compatibility module
Added getter methods for the A, B and C coefficients of the Plane class
Added A,B,C getter methods for Planes to OpenCSG compatibility module
Added character array name attribute for Cell class
Added Cell name class attribute to OpenCSG compatibility module
Added character array name class attribute to Universe and Lattice
Added Universe name class attribute to OpenCSG compatibility module
Fixed merge conflict in OpenCSG compatibility module