Add An Arbitrary World and An Arbitrary World Lite maps

[TheNathanSpace]

One of the most popular GeoGuessr community maps is An Arbitrary World (AAW): https://www.geoguessr.com/maps/6089bfcff6a0770001f645dd. This PR adds two maps that are based on AAW!

AAW is built using an algorithm to generate a list of locations evenly distributed across the world, by country, using official vehicle coverage. You can use the same algorithm by using the creator's tool here: https://github.com/slashP/Vali, which is what I did to make these maps.

I tried a few different map sizes, and settled on the location quantities of 5000 for the main version and 2500 for the Lite version. On my computer, here are their load times:

• 2500: 3 seconds
• 5000: 15 seconds
• 10000: 100 seconds (Not included in the PR, but included here to demonstrate why I chose these location quantities.)

The maps are FeatureCollections of Point Features. If you know of any way to optimize map loading on my side, it would be great to use larger maps instead—but if you don't, these are the most reasonable sizes to me.

The images are sourced from Unsplash, edited (e.g., to size), and uploaded to Imgur.

Note that I HAVEN'T changed maps.json—I've instead changed list.maps.json. It looks like the CI pipelines will automatically update maps.json?

I've tried to follow all the instructions you have in this repository and the instructions I've found in past map PRs you've accepted, but I'm happy to adjust anything you want—just let me know!

[TheNathanSpace]

Hey @BilelJegham, let me know if you have any thoughts on this! :) (no pressure if you're busy though)

[BilelJegham]

All good :)

Thanks @TheNathanSpace for the contribution