add missing import of Event

Author: gavinking

tooling/metamodel-generator/src/main/java/org/hibernate/processor/annotation/EventField.java

@@ -8,6 +8,7 @@
 import org.hibernate.processor.model.Metamodel;
 import org.hibernate.processor.util.Constants;
 
+import static org.hibernate.processor.util.Constants.EVENT;
 import static org.hibernate.processor.util.Constants.INJECT;
 import static org.hibernate.processor.util.Constants.JD_LIFECYCLE_EVENT;
 
@@ -38,6 +39,7 @@ public boolean hasStringAttribute() {
 	@Override
 	public String getAttributeDeclarationString() {
 		annotationMetaEntity.importType(INJECT);
+		annotationMetaEntity.importType(EVENT);
 		annotationMetaEntity.importType(JD_LIFECYCLE_EVENT);
 		return "\n@Inject\nprivate Event<? super LifecycleEvent<?>> event;";
 	}