Contact module roadmap: 80% usecase of Webforms in core

This d.org issue was recently brought to my attention: https://www.drupal.org/project/ideas/issues/2582955

Background

Now that we have a new release cycle, we have the possibility of new features in minor releases, i.e. although we are in RC1 for 8.0, that doesn't mean we can't add new features until 9.0. Provided they are backwards-compatible, we can add new features in 8.1 and 8.2.

After recently taking over maintainer-ship of the core contact module @andypost and I, in consultation with @berdir have formulated a draft roadmap for the features we'd like to see in contact module in the future. Why not make this the guinea pig for how these initiatives and features might work in future versions of D8.

High-level goal

To provide the 80% use-case of webform. i.e. allowing creation and submission of feedback forms from site-users; and providing editing, listing and administration of submitted form values.

Webform contains lots of features, we're only after expanding contact module slightly to add storage and administration and in the process meet the basic use-case of webform in core.

Note that some of these items have been developed in contrib as the Contact Storage module. They can continue to mature there during 8.0 with the view to include in point releases eg 8.1, 8.2.