added disaggregationResultField as a child element of the nrml tag
added disaggregationResultField as a child element of the nrml tag


Former-commit-id: ec8d2e77a23ae11b4b3270495fe0c39447e7b0a1
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine