tests/export/hazard_test:
tests/export/hazard_test:

Cleaned up an export test, added additional checks to cover hazard
curves produced from GMFs.


Former-commit-id: 0f0ebdad84db7b6f00a76a8157d241b80a43e281 [formerly 0f0ebdad84db7b6f00a76a8157d241b80a43e281 [formerly 2d8d5b4afdfb9238693473b4e5eae2677d9c8681]]
Former-commit-id: 030993fbfb8066aea02651f35c2c6213e55bafb7
Former-commit-id: eb124eee00a710ffffe514a3a35680b106885c5e
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine