Add Conda packaging and automated Anaconda release workflow

[harryswift01]

Summary

This PR will add automated Conda packaging and publishing to the release workflow so CodeEntropy can be distributed via the CCPBioSim Anaconda channel.

Changes

Add Conda build recipe:

• Introduced conda-recipe/meta.yaml
• Configured noarch Python build
• Aligned package requirements with conda-forge
• Added pip install step for waterEntropy

Add Conda release workflow:

• Added Conda build job to release workflow
• Automatically updates recipe version during release
• Builds package using Miniforge
• Uploads package to CCPBioSim Anaconda channel via API token

Documentation updates:

• Added Conda install instructions to Getting Started guide
• Added Conda developer environment option in Developer Guide

Impact

• Expands distribution beyond PyPI
• Improves reproducibility for HPC and scientific workflows
• Provides foundation for future conda-forge packaging

[jimboid]

Did you remove the defaults channel in this PR?

There is a warning on the previous run that failed saying something like setting 'conda-remove-defaults' to 'true'.

If you are sure this is done then merge.

[jimboid]

This looks correct now. Fingers crossed!