async loadIfcUrl(url, fitToFrame = false) {
            await this.IFC.loadIfcUrl(url, fitToFrame);
        }
@deprecated Use `IfcViewerAPI.IFC.loadIfcUrl()` instead.
Loads the given IFC in the current scene.
@file IFC as URL.
@fitToFrame (optional) if true, brings the perspectiveCamera to the loaded IFC.