Adding CRS example

example/Vector/0_simple/main.cpp

example/Vector/5_molecular_dynamic_sym_crs/Makefile

example/Vector/5_molecular_dynamic_sym_crs/config.cfg

example/Vector/5_molecular_dynamic_sym_crs/main.cpp

openfpm_data

openfpm_pdata.doc

src/Decomposition/nn_processor.hpp

src/Makefile.am

src/Vector/vector_dist.hpp

src/Vector/vector_dist_cell_list_tests.hpp