Added missing icons and changed provided text for stext elements.

plugins/org.yakindu.sct.model.stext.edit/src/org/yakindu/sct/model/stext/stext/provider/EventDefinitionItemProvider.java

@@ -179,8 +179,8 @@ public class EventDefinitionItemProvider
   {
     String label = ((EventDefinition)object).getName();
     return label == null || label.length() == 0 ?
-      getString("_UI_EventDefinition_type") :
-      getString("_UI_EventDefinition_type") + " " + label;
+      "Event" :
+      "Event" + " " + label;
   }
 
   /**

plugins/org.yakindu.sct.model.stext.edit/src/org/yakindu/sct/model/stext/stext/provider/InterfaceScopeItemProvider.java

@@ -122,8 +122,8 @@ public class InterfaceScopeItemProvider
   {
     String label = ((InterfaceScope)object).getName();
     return label == null || label.length() == 0 ?
-      getString("_UI_InterfaceScope_type") :
-      getString("_UI_InterfaceScope_type") + " " + label;
+      "Interface " :
+      "Interface" + " " + label;
   }
 
   /**

plugins/org.yakindu.sct.model.stext.edit/src/org/yakindu/sct/model/stext/stext/provider/InternalScopeItemProvider.java

@@ -91,7 +91,7 @@ public class InternalScopeItemProvider
   @Override
   public String getText(Object object)
   {
-    return getString("_UI_InternalScope_type");
+    return "Internal";
   }
 
   /**

plugins/org.yakindu.sct.model.stext.edit/src/org/yakindu/sct/model/stext/stext/provider/VariableDefinitionItemProvider.java

@@ -203,8 +203,8 @@ public class VariableDefinitionItemProvider
   {
     String label = ((VariableDefinition)object).getName();
     return label == null || label.length() == 0 ?
-      getString("_UI_VariableDefinition_type") :
-      getString("_UI_VariableDefinition_type") + " " + label;
+      "Variable" :
+      "Variable" + " " + label;
   }
 
   /**