Added helper function to get the path of the NRML schema file.
Added helper function to get the path of the NRML schema file.


Former-commit-id: 8ecd162fe5c87869e3bf8b071f542af406465d82 [formerly 3466a130f011affede346635a7a10403fa3a1d0b]
Former-commit-id: 0d423e50c573b77b38dc5052f8f96bb8857d5477
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine