Conceal data environment configuration behind a feature flag. We don't currently have v1 schemas for DEs, so hiding them for now.
Use organization#features for feature detection, rather than config/environment.js
Update security control rendering to support security control parameters (leaf properties). Leaf properties are used to determine visibility of entire groups of security controls. Included in this is support for visible=false properties.
organization#featuresfor feature detection, rather thanconfig/environment.jsvisible=falseproperties.