General fixing and improve for distributed vector

src/.deps/pdata-VCluster.Po

src/.deps/pdata-main.Po

src/Decomposition/CartDecomposition.hpp

src/Decomposition/CartDecomposition_unit_test.hpp

src/Vector/vector_dist.hpp

src/Vector/vector_dist_iterator.hpp

src/Vector/vector_dist_unit_test.hpp

src/dec_optimizer.hpp