Allow users to download the demo folder

[Zehir]

Is your feature request related to a problem? Please describe.
Currently users have no easy way to download the walker demo scene because the clone zip option use the git attribute file and will ignore that directory.

Describe the solution you'd like

• Add a zip file with the demo on the release
• Include them in the addon directly in an example folder like many other addons does

Describe alternatives you've considered
The any workaround is to git clone the repo

Is there a reason this should be core and not a project-specific feature?
NA

Additional context
NA

[BenjaTK]

I don't like that other addons include examples, and Godot recommends the zip file to only include the addon itself so when downloading from the asset library it doesn't clutter their project. I think we could consider maybe having a separate project in the organization for examples? Would also mean the addon itself is a bit less cluttered, but would mean it's a bit separated.

[BenjaTK]

@cullumi I'd like to get your opinion on this

[Zehir]

Instead of using the .gitattributes file to handle what should be included in the repo we could use a build script to generate the zip file with the correct content for the addon only and a second zip file with the demo scene.

I did that at some point using my custom build script but then revert to have only one zip file but the core is still there to produce multiple zip files ;

https://github.com/Zehir/godot-hexagon-tile-map-layer/blob/main/.github/workflows/release.yml

[BenjaTK]

The godot docs advise to use gitattributes

[cullumi]

I wanna say we've settled on #427 (completed by #426 and #425) to address this issue. The demos will only be included as submodules, which Godot Asset Library does not include in downloads, anyway.

The new repo gaea-demos now has it's own releases and will most likely be added directly to the Godot Asset Library.