Add simple Create Project Structure launcher action

[BigRoy]

Imp for AY-5076

Changelog Description

Add simple Create Project Structure launcher action.

Which creates the folder structure as defined in project settings: ayon+settings://core/project_folder_structure

Additional info

It currently only shows when you're in a project in the launcher but have NO folder or task selected to avoid clutter in launcher.

The label unfortunately is a bit too long to be nicely displayed by default, see screenshot. Any ideas for better icon and shorter label that doesn't get cut off?

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This feature request came up a few times:

• Ynput Community Forum: How set up custom folder creation when using the launcher
• Ynput Community Forum: Default Project Hierarchy mentions the setting but seemed to describe a different feature.
• Discord

Testing notes:

1. Update core addon
2. Run the launcher action when you enter a project.
3. Folders should now be generated as per settings.