Forced module order to be fixed based on config input

[jacobcook1995]

Description

This pull request changes select_models to use a list rather than a set to find the non-duplicated model names. This means that the inputted order of models is preserved, so that models are always called in the order the user specifies them.

This doesn't fix the broader issue of how we should handle model ordering, where the information should be stored, etc. It does fix the issue of vr_run sometimes randomly stalling when a valid model order is entered.

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

[codecov-commenter]

Codecov Report

Merging #245 (5b63306) into develop (1fe8e44) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop     #245      +/-   ##
===========================================
+ Coverage    95.37%   95.39%   +0.01%     
===========================================
  Files           42       42              
  Lines         1643     1650       +7     
===========================================
+ Hits          1567     1574       +7     
  Misses          76       76              

Impacted Files	Coverage Δ
virtual_rainforest/main.py	84.09% <100.00%> (+1.37%)	⬆️

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[vgro]

LGTM