Demonstrate custom icons in Exeed

Author: kolovos

examples/org.eclipse.epsilon.examples.exeedoo/OO.emf

@@ -1,7 +1,7 @@
 @namespace(uri="OO", prefix="")
 package OO;
 
-@exeed(classIcon="model")
+@exeed(classIcon="platform:/resource/org.eclipse.epsilon.examples.exeedoo/icons/model")
 class Model extends Package {
 }
 
@@ -33,7 +33,7 @@ abstract class NamedElement extends AnnotatedElement {
   !unique !ordered attr String[1] name;
 }
 
-@exeed(classIcon="package", label="return self.name;")
+@exeed(classIcon="platform:/resource/org.eclipse.epsilon.examples.exeedoo/icons/package.gif", label="return self.name;")
 class Package extends PackageableElement {
   !ordered val PackageableElement[*]#~package contents;
   ref Package[*] uses;