/// <param name="trackable">The trackable to be added to the world storage.</param>
/// <response code="200">OK, returns the UUID of the Trackable defined by the world storage.</response>
/// <remarks>Create a new Trackable from a json object containing all the required informations and add it to the world storage. <br>As a result you will get the ID of the newly created Trackable.</remarks>
/// <param name="trackable">The Trackable to be added to the world storage.</param>
/// <response code="200">OK, return the UUID of the Trackable defined by the world storage.</response>
/// <param name="worldAnchor">The world anchor to be added to the world storage.</param>
/// <response code="200">OK, returns the UUID of the World Anchor defined by the world storage.</response>
/// <remarks>Create a new World Anchor from a json object containing all the required informations and add it to the world storage. <br>As a result you will get the ID of the newly created World Anchor.</remarks>
/// <param name="worldAnchor">The World Anchor to be added to the world storage.</param>
/// <response code="200">OK, return the UUID of the World Anchor defined by the world storage.</response>
/// Create a link between world anchors and trackables.
/// Create a World Link between elements (world anchors and/or trackables).
/// </summary>
/// <remarks>Create a new World Link from a json object containing all the required informations and add it to the world storage. <br>As a result you will get the ID of the newly created World Link.</remarks>
/// <param name="worldLink">The link to be added to the world storage.</param>
/// <response code="200">OK, returns the UUID of the link defined by the world storage.</response>
/// <response code="201">Null response</response>
/// <response code="200">OK, return the UUID of the World Link defined by the world storage.</response>