Bug Fix

src/feature_creation/feature_space/FeatureSpace.cpp

src/feature_creation/feature_space/FeatureSpace.hpp

src/mpi_interface/MPI_Ops.cpp

src/utils/compare_features.cpp

src/utils/compare_features.hpp

tests/exec_test/default/sisso.json

tests/exec_test/gen_proj/sisso.json

tests/googletest/utils/test_compare_features.cc

...feature_creation/test_feature_space/test_feature_space.py