Include support for oscillations open data release v0.5

After some discussions with the Open Science Comitte https://indico.cern.ch/event/1521633/ we added changed a little bit the structure of the file for the open data set, this issue serves to support this version which hopefully will be the final one.

assigned to @spenamartinez

created branch 35-include-support-for-oscillations-open-data-release-v0-5 to address this issue

mentioned in merge request !55 (merged)

closed with commit 32992c48

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Sorry, this was a testbot