Feature for new app modeller to save attribute sets across environments

[mhadubiak]

Currently the enhanced app modeler allows for users to save attribute sets per spy mode so that custom best practices for resilient attribute selections are easier to follow and faster to spy. These saved attribute sets only apply to the user and cannot be saved for the environment itself to enforce best practices across all developers. Adding a feature to save attributes for that spy mode across the environment would allow users to apply changes broadly and enforce best practices.