Reduce number of inputs - take a json for inputs that are not needed by most users

[vburckhardt]

Description

• Reduce number of variables in the DA - eg: only expose the variables that are needed by the majority of users (eg: 80% of users)
• Move the variables that are not needed by most users to a json input. See landing zone DAs as example (override_json input).

[huayuenh]

Looking at moving the pipeline properties into the new pipeline property JSON support. This should significantly reduce the number of inputs

[padraic-edwards]

Will be addressing this in an upcoming release, reducing the number of optional properties, grouping related variables and improving descriptions.