Added a debug utility to extract a source from a source model file [skip CI]
Added a debug utility to extract a source from a source model file [skip CI]


Former-commit-id: 6667e43d80ded3ee252b994f2b12f645ada8a971 [formerly a212fb8ca940ee39a2aa7800163094bcaa95936e]
Former-commit-id: 700dcc06e6daa95d11c1d165e9774e1071bf15a4
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine