1442 Generic country Simulation

[HenrZu]

Changes and Information

Please briefly list the changes (main added features, changed items, or corrected bugs) made:

• Load contact data based on Prem et al., 2017
• Example ode_seir_contact_matrix_example.py runs a simulation for a specified country with real contact and population data
• The contact matrices are available for around 90 countries.

If need be, add additional information and what the reviewer should look out for in particular:

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.36%. Comparing base (1bb1c1e) to head (9321842).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1466      +/-   ##
==========================================
- Coverage   97.39%   97.36%   -0.03%     
==========================================
  Files         188      188              
  Lines       16539    16539              
==========================================
- Hits        16108    16104       -4     
- Misses        431      435       +4     

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[mknaranja]

Thank you. Great addition. I went through it line by line with the debugger and checked here and there also for alternative if/else. I had some small comments + one bigger one for the aggregation of age groups.

I did not check if it works with a path provided and only briefly looked at the tests.

[mknaranja]

I think this is not correct. First, the rows (or columns; depending on the orientation from-to) should be multiplied with the group size (0-4: x, 5-14: y, ...). Then you can add and eventually you divide by the sum of x+y... Right?