sysand add sensmetry/syside-reqif
source attribute to allow tracking which SysMLv2 element belongs to
which ReqIF project, if multiple ReqIF projects are being imported into one
SysMLv2 workspace.editable_atts and is_table_internal attributes from the
ReqIF spec.long_name from being only relevant to reqif_datatype to be
relevant to all reqif metadata.Initial release