Rework of "World Cities" help patch

[chkworks]

PR Details

This PR suggests some changes to the World Cities help patch, so it gets simplified and aligns with an upcoming tutorial.

Description

• renamed to "World Cities"
• removed quotation marks in the CSV, so they don't have to be removed in the ParseData process anymore
• replaced "," with ";" in the CSV, so the file is also displayable in Excel
• moved FileReader out of the Cache, as I guess it's already cached internally (is it?)

Motivation and Context

Simplification of the patch for tutorial preparation. Further steps would be to replace the box with a Cylinder, move the calculation of Transformations into the same Cache as the ParseData process and rename "HUD" to "DisplayInfo".

Types of changes

• [x] Docs change / refactoring / dependency upgrade
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [ ] My change requires a change to the documentation