[escher] In pointer text view (future message text view) implement

minimal size for optimal display to ensure to be able to display all
languages

Change-Id: Id3c81185fa44017bc4fcca5db0c8d0a6c115f6fb

quiz/src/i18n.cpp

@@ -6,5 +6,9 @@ const char * translate(Message m, Language l) {
   return nullptr;
 }
 
+int numberOfLanguages() {
+  return 0;
+}
+
 }