force construction of face-diagonal decomposition (called from all procs!) before call of particle constructor (potentially not on all procs!) to avoid blocking sync operation, when it looks for tet face index and tet point index. fix #131
force construction of face-diagonal decomposition (called from all procs!) before call of particle constructor (potentially not on all procs!) to avoid blocking sync operation, when it looks for tet face index and tet point index. fix #131