R1:269e0bfc943e

Allow EditEngine form fields to be locked and hidden

Summary:
Ref T9132. Allows fields to be locked (shown, but not modifiable) and hidden (not shown).

In both cases, default values are still respected.

This lets you do things like create a form that generates objects with specific projects, policies, etc.

Test Plan:
- Set defaults.
- Locked and hid a bunch of fields.
- Created new objects using the resulting form.

{F975801}

{F975802}

{F975803}

{F975804}

Reviewers: chad

Reviewed By: chad…