Made workflow metadata searchable.

dependencies/parsers/vasp

gui/src/searchQuantities.json

nomad/datamodel/__init__.py

nomad/datamodel/datamodel.py

nomad/datamodel/dft.py

nomad/datamodel/metainfo/__init__.py

nomad/datamodel/metainfo/public.py

nomad/metainfo/elastic_extension.py

nomad/parsing/artificial.py

nomad/processing/data.py

tests/data/proc/examples_template.zip

tests/data/proc/examples_template/template.json