[Modules] Prerequisites or requirements for individual items in module

[lvm55]

Assume the case where modules are organized by unit content, so there are many assignments and other content items in a given module.

Module X:

• Content Page
• Assignment A
• Content Page
• Assignment B *
• Assignment C *
• Assignment D

I would like to be able to create a prerequisite rule that applies to only one or two of the assignments in this module: for example, students must submit assignment B before being allowed to view assignment C.  This rule could be created at the same place where other module rules are created in the UI, and should be able to co-exist with the other available module rules.

Please see this similar past request: * Make a quiz/assignment/discussion a pre-requisite for another quiz/assignment/discussion (in the s...