Fix loading of OCIM2_48L (updated NCDataset syntax)

[briochemc]

fix #97

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.72%. Comparing base (fe509e7) to head (274e852).

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #98      +/-   ##
==========================================
+ Coverage   48.75%   52.72%   +3.97%     
==========================================
  Files          23       23              
  Lines        1081     1081              
==========================================
+ Hits          527      570      +43     
+ Misses        554      511      -43     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[briochemc]

Hi @JianghuiDu! This PR should fix the bug with OCIM2-48L. I am tagging a new version (v0.13.4) and releasing right away, so please allow for a couple hours before simply updating your AIBECS package and you should be good to go. I've also swapped in the OCIM2 48L circulation for the ideal age tutorial, so you should be able to directly use that: https://juliaocean.github.io/AIBECS.jl/previews/PR98/tutorials/1_ideal_age/.