dpcreator on the terminal?

[mccalluc]

Discussed this with Raman yesterday: We might consider reconceptualizing DPCreator as a terminal application.

• We are refocusing on a model where sensitive data always stays local: While this is possible with a webapp / electron, the choice of platform itself might cause users to worry that data might leak.
• The question-and-answer interface we already have translates well to an terminal application.
• Webapp development is more difficult than terminal application development in general.
• We could just use python and avoid the complexity of making an OpenDP web assembly build.
• This needn't be an endpoint: We could consider it a kind of wireframe that makes it easier to focus on the questions for the user, and leaves the UI details for later.

With a terminal application, we could also ask what the output should be: One possibility is that the application does not use opendp itself, but instead outputs a python script which actually has import opendp. This would be in line with #852. Execution could be passed to the script with https://docs.python.org/3/library/os.html#os.execl or similar.