Sentiment component

@Fares I told you to check action server log, whilst using rasa run actions --debug :stuck_out_tongue: as custom action run using rasa run actions, and no worries, since few days me really busy.

You should use message.get("text_tokens") instead of message.get("tokens")

TOKENS_NAMES = {
    rasa.shared.nlu.constants.TEXT: "text_tokens",
    rasa.shared.nlu.constants.INTENT: "intent_tokens",
    rasa.shared.nlu.constants.RESPONSE: "response_tokens",
    rasa.shared.nlu.constants.ACTION_NAME: "action_name_tokens",
    rasa.shared.nlu.constants.ACTION_TEXT: "action_text_tokens",
    rasa.shared.nlu.constants.INTENT_RESPONSE_KEY: "intent_response_key_tokens",
}