R1:ed3dfd491f17

Further modularize Herald values

Summary: Ref T8726. Modularize action values. Fully modularize "text", "none" and "select" controls. Only tokenizers remain.

Test Plan:
- Used all affected value types in UI.
- Reviewed rules using new modular rendering, saw sensible output.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T8726

Differential Revision: https://secure.phabricator.com/D13614