Clean and Revitalise "Models Repo"

[diegopajarito]

We need to update the docs describing the project.

Critical changes were listed in issue #126

[diegopajarito]

@diegopajarito has updated the repo structure, but still docs aren't finished

[SebastianHafner]

I created a readme file for the repo:
https://github.com/urbanbigdatacentre/ideamaps-models/blob/dev-morphological_informality_model/README.md

And a readme file for the morphological informality model:
https://github.com/urbanbigdatacentre/ideamaps-models/tree/dev-morphological_informality_model/Sub-domains/MorphologicalInformality/Sourcecode/V3

[andy-clarke-uofg]

• Cleaning and legacy
• Meeting with Sebastian, Diego + Andy
• Can we have a GH Actions that publishes on Zenodo + DOI

[diegopajarito]

• Add an overview of the folder structure (purpose) @andy-clarke-uofg
• Update the example folder structure @andy-clarke-uofg
• Add a description of the example folder structure (A folder for source code 'scripts' and a folder per city for data and metadata) @andy-clarke-uofg
• Contributors guidelines (branches, pull requests)
• Clean up the legacy models (into 'dev' branch) @SebastianHafner @diegopajarito
• Remove capitalisation and underlines in folder and file names @andy-clarke-uofg
• Set up zenodo integration and GitHub actions for releases https://support.zenodo.org/help/en-gb/24-github-integration @andy-clarke-uofg @diegopajarito
• Implement new branch policy @ALL
• Protect main branch @andy-clarke-uofg
• Remove the requirement of a reviewer for pull requests @andy-clarke-uofg
• Rename Subdomains to Models @andy-clarke-uofg