addPresentationalDependency(presentationalDependency) {
		if (this.presentationalDependencies === undefined) {
			this.presentationalDependencies = [];
		}
		this.presentationalDependencies.push(presentationalDependency);
	}
@param {Dependency} presentationalDependency dependency being tied to module.
This is a Dependency without edge in the module graph. It's only for presentation.
@returns {void}