MS_LIST - Print elasticity matrix (in 'list' format)

CIJ_list(C,rho)

Usage:
    CIJ_list(C,rho)
        For a given 6x6 elasticity matrix, C, and density, rho, print
        the constants.

Notes:
  The 'list' format consists of three numbers per line. The first two
  are integers representing the location in the elasticity matrix in
  Voigt notation, the third is the value of the elastic constant. After
  the 36 lines of elastic constants a line containing the density is
  printed with dummy indices '7 7'. This function exists to allow
  MSAT to be interfaced with legacy code.