Feature branch for biomass related functionality

[davidorme]

Description

This is a feature branch for developing and deploying Biomass functionality.

Fixes #1482

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
• Relevant documentation reviewed and updated

[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.76923% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.99%. Comparing base (6489439) to head (fccbf75).
⚠️ Report is 8 commits behind head on develop.

Files with missing lines	Patch %	Lines
virtual_ecosystem/models/plants/biomasses.py	96.00%	9 Missing ⚠️
virtual_ecosystem/models/plants/stoichiometry.py	90.90%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1484      +/-   ##
===========================================
+ Coverage    94.96%   94.99%   +0.02%     
===========================================
  Files           71       72       +1     
  Lines         7547     7787     +240     
===========================================
+ Hits          7167     7397     +230     
- Misses         380      390      +10     

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