Support added for tracing PageList during automations

When using the out-of-the-box email reply on an email triage case, an exception was observed in the tracer stating "com.pega.pegarules.pub.clipboard.WrongModeException: The property To.pxResults was of mode Page List while com.pega.pegarules.data.internal.clipboard.ClipboardPropertyImpl.getObjectValue() was expecting Java Object mode." This has been resolved by adding support for tracing PageList during automations.