897 add initialization method from flows for lct model

[lenaploetzke]

Changes and Information

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

• added functionality to compute an initial vector for the lct model based on flows

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

• This PR should be reviewed after 899 add gamma distribution and other parameters to state_age_function #929 as it is based on it.

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
• (For ABM development) Checked benchmark results and ran and posted a local test above from before and after development to ensure performance is monitored.

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, code coverage and performance 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.)
• On merge, add 2-5 lines with the changes (main added features, changed items, or corrected bugs) to the merge-commit-message. This can be taken from the briefly-list-the-changes above (best case) or the separate commit messages (worst case).

Closes #897.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.42%. Comparing base (ce75c58) to head (4cd50ce).
Report is 8 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #931      +/-   ##
==========================================
+ Coverage   96.36%   96.42%   +0.05%     
==========================================
  Files         123      124       +1     
  Lines        9844    10001     +157     
==========================================
+ Hits         9486     9643     +157     
  Misses        358      358              

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[lenaploetzke]

Attention: This PR should be also recreated (as PR #929). It also contains the large boost file in the history.

[lenaploetzke]

Moved to PR #1005