sequences are now generic property containers

modules/base/src/CMakeLists.txt

modules/base/src/export_helper/generic_property_def.hh

modules/base/src/generic_property.hh

modules/mol/base/pymod/export_atom.cc

modules/mol/base/pymod/export_bond.cc

modules/mol/base/pymod/export_chain.cc

modules/mol/base/pymod/export_entity.cc

modules/mol/base/pymod/export_residue.cc

modules/mol/base/src/atom_base.hh

modules/mol/base/src/bond_handle.hh

modules/mol/base/src/chain_base.hh

modules/mol/base/src/entity_base.hh

modules/mol/base/src/residue_base.hh

modules/seq/base/pymod/export_sequence.cc

modules/seq/base/src/impl/sequence_impl.hh

modules/seq/base/src/sequence_handle.cc

modules/seq/base/src/sequence_handle.hh