769 new initialization for ide model

[lenaploetzke]

Changes and Information

Please briefly list the changes made, additional Information and what the Reviewer should look out for:

• added a different method to initialize the ide model. Is comparable to the method used for the ODE model for compartment Recovered. Examples and tests run correctly.

Merge Request - Guideline Checklist

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Checks by code author

• Every addressed issue is linked (use the "Closes #ISSUE" keyword below)
• New code adheres to coding guidelines
• No large data files have been added (files should in sum not exceed 100 KB, avoid PDFs, Word docs, etc.)
• Tests are added for new functionality and a local test run was successful
• Appropriate documentation for new functionality has been added (Doxygen in the code and Markdown files if necessary)
• Proper attention to licenses, especially no new third-party software with conflicting license has been added

Checks by code reviewer(s)

• Corresponding issue(s) is/are linked and addressed
• Code is clean of development artifacts (no deactivated or commented code lines, no debugging printouts, etc.)
• Appropriate unit tests have been added, CI passes and code coverage is acceptable (did not decrease)
• No large data files added in the whole history of commits(files should in sum not exceed 100 KB, avoid PDFs, Word docs, etc.)

Closes #769

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (b0363c4) 95.88% compared to head (704f83a) 96.11%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #770      +/-   ##
==========================================
+ Coverage   95.88%   96.11%   +0.23%     
==========================================
  Files         118      118              
  Lines        9400     9425      +25     
==========================================
+ Hits         9013     9059      +46     
+ Misses        387      366      -21     

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[annawendler]

Nice initialization! I added a few comments and questions, especially regarding the test.