Added licence headers and file.

...SI.ARF/ARF World Storage API/Editor/Graph/ARFGraphView.cs

...ts/ETSI.ARF/ARF World Storage API/Editor/Graph/ARFNode.cs

...TSI.ARF/ARF World Storage API/Editor/Graph/GraphWindow.cs

...F/ARF World Storage API/Editor/Windows/TrackableWindow.cs

...ARF World Storage API/Editor/Windows/WorldAnchorWindow.cs

...RF World Storage API/Editor/Windows/WorldStorageWindow.cs

.../ARF World Storage API/Editor/WorldStorageServerEditor.cs

...RF/ARF World Storage API/Editor/WorldStorageUserEditor.cs

Assets/ETSI.ARF/ARF World Storage API/World Storage.meta

... World Storage API/World Storage/HHI Server - local.asset

...d Storage API/World Storage/HHI Server - local.asset.meta

....ARF/ARF World Storage API/World Storage/HHI Server.asset

...ARF World Storage API/World Storage/HHI Server.asset.meta

...TSI.ARF/ARF World Storage API/World Storage/Sylvain.asset

...RF/ARF World Storage API/World Storage/Sylvain.asset.meta

Packages/manifest.json

Packages/packages-lock.json

Packages/unity-world-storage-package

ProjectSettings/ProjectSettings.asset

ProjectSettings/ProjectVersion.txt