Initialized pointers in MISC and MOLECULE

src/MISC/compute_ti.cpp

src/MISC/dump_xtc.cpp

src/MISC/fix_deposit.cpp

src/MISC/fix_efield.cpp

src/MISC/fix_evaporate.cpp

src/MISC/fix_gld.cpp

src/MISC/fix_orient_bcc.cpp

src/MISC/fix_orient_fcc.cpp

src/MISC/fix_thermal_conductivity.cpp

src/MISC/fix_ttm.cpp

src/MISC/fix_viscosity.cpp

src/MOLECULE/fix_cmap.cpp