Bug 305389 EclipsePartService: Add getInputParts(String inputUri): Collection
Add support for the new InputPart-Type with Input-URI
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/workbench/modeling/EPartService.java
/**
	 * Applicable states that a part can be in. This will be used in conjunction with
	 * {@link EPartService#showPart(String, PartState)}.
	 */
	public enum PartState {
		/**
		 * Part state that indicates the part should be made visible and activated.
		 */
		ACTIVATE,
		/**
		 * Part state that indicates the part should be made visible though it may not necessarily
		 * be granted focus. If the part will be displayed in the same stack as the currently active
		 * part, then this has the same effect as <code>CREATE</code>.
		 */