Expose output size to the WebUI [skip ci]
Expose output size to the WebUI [skip ci]


Former-commit-id: 6eb1d047f34a43991a83bb2e0e2160e5bc47e1d1 [formerly 6ad167942bc9b36c9cf37613197de2808d7efc45]
Former-commit-id: 7958a3de00c255ca9bd8c701ba01682a52f5d05d
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine