Add a question by a description

[wasade]

This will be very useful for adding surveys, notably the animal survey. The proposed description of a question is:

# json
{"survey": int,  # required, which survey, currently no "english" description. Human is 1.
 "group": str,  # required, the corresponding question group the question is associated wtih
 "order": int,  # optional, the display index of the question
 "question_type": str,  # required, one of ['SINGLE', 'MULTIPLE', 'TEXT', 'STRING']
 "question": {  
    "american": str,  # required, can be anything. All questions are relative the american version of a question
    ...},
 "responses": {  # required, all keys must exist in "question" and vice versa
    "american": [str],  # required, can be anything
    ...},
 "triggers": [{  # optional, any questions that are triggered if any of a set of responses are selected
    "triggered_question": str,  # the american version of the question to be triggered
    "triggering_responses": [str]  # the responses of self that can trigger "triggered_question"
    ]}
}

This structure allows for validation against the database. Triggered questions need to be added prior. This format allows for existing questions to be serialized if needed as well.