Bug 306576 Externalization/translation of strings in xmi files
Currently our e4xmi files have various hard-coded English strings that are presented to the user (in particular the "label" attributes). Is there some mechanism already defined for externalization/translation of NLS strings from these xmi files? If not, we need to define one. Creating a new xmi file from scratch for each language won't scale, and won't allow switching languages after the product is installed.
bundles/org.eclipse.e4.ui.workbench/src/org/eclipse/e4/ui/workbench/UIEvents.java
public static final String TOPIC = UITopicBase + "/commands/KeySequence"; 
		public static final String KEYSEQUENCE = "keySequence"; 
	}
	public static interface Parameter {
		public static final String TOPIC = UITopicBase + "/commands/Parameter"; 
		public static final String NAME = "name"; 
		public static final String VALUE = "value"; 
	}
	public static interface PartDescriptor {
		public static final String TOPIC = UITopicBase + "/basic/PartDescriptor"; 
		public static final String ALLOWMULTIPLE = "allowMultiple"; 
		public static final String CATEGORY = "category"; 
		public static final String CLOSEABLE = "closeable"; 
		public static final String CONTRIBUTIONURI = "contributionURI"; 
		public static final String DIRTYABLE = "dirtyable"; 
		public static final String MENUS = "menus"; 
		public static final String TOOLBAR = "toolbar"; 
	}
	public static interface PartDescriptorContainer {
		public static final String TOPIC = UITopicBase + "/basic/PartDescriptorContainer"; 
		public static final String DESCRIPTORS = "descriptors"; 
	}
	public static interface Application {
		public static final String TOPIC = UITopicBase + "/application/Application"; 
		public static final String ADDONS = "addons"; 
		public static final String CATEGORIES = "categories"; 
		public static final String COMMANDS = "commands"; 
	}
	public static interface ApplicationElement {