Indirect development in animals

[TaranRallings]

Description

This includes a few changes to do with animals that undergo indirect developmental, proceeding through a metamorphic process where their functional group changes, such as from caterpillar to butterfly.

Included:
Animal traits for: development type (direct vs indirect), development status (adult vs larval), and the functional group that is produced by the current functional group through either birth or metamorphosis. This also adds a non-reproductive reproductive type for larval functional groups.

The main methods included are metamorphose and metamorphose_community, creating the change and processing the change over the entire community, respectively.

Fixes # (issue)

Type of change

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

Key checklist

• Make sure you've run the pre-commit checks: $ pre-commit run -a
• All tests pass: $ poetry run pytest

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[dalonsoa]

Looks good to me. Just a couple of comments on the print statements.

Are all of those TODOs here and there also being open as issues, so they can be tackled in the future?

[alexdewar]

I've made some tiny suggestions, but this looks good!

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.66%. Comparing base (efd0b7f) to head (653c175).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #450      +/-   ##
===========================================
+ Coverage    94.61%   94.66%   +0.05%     
===========================================
  Files           70       70              
  Lines         3750     3786      +36     
===========================================
+ Hits          3548     3584      +36     
  Misses         202      202              

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