add capability to set a slot to a whole message conditioned on the intent RasaHQ/roadmap#280
add capability to set a slot to a whole message conditioned on the intent RasaHQ/roadmap#280

RasaHQ/rasa_nlu,RasaHQ/rasa_core,RasaHQ/rasa_core,RasaHQ/rasa_nlu,RasaHQ/rasa_core,RasaHQ/rasa_nlu