Resolve "New entries in tabular parser should be picked up from label_quantity"

...s/tabular-parser_3_row_current-entry_to-path.archive.yaml

...abular-parser_5_row_single-new-entry_to-path.archive.yaml

...ar-parser_6_row_multiple-new-entries_to-root.archive.yaml

...ar-parser_7_row_multiple-new-entries_to-path.archive.yaml

...er_8_row_current-entry_to-path_subsubsection.archive.yaml

examples/data/tabular/README.md

examples/data/tabular/data.xlsx

examples/data/tabular/periodic-table.archive.yaml

nomad/parsing/tabular.py