Review Status Workflow and Indicators

[birm]

Description

Add @nanli-emory's work from custom/check into the platform proper. It's been a very useful tool across many projects.

Motivation and Context

Closes #406

How Has This Been Tested?

Simple test of marking reviewed and checking table.

Types of changes

**What types of changes does your code introduce? Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

**Go over all the following points, and put an x in all the boxes that apply.
**(If you're unsure about any of these, don't hesitate to ask. We're here to help!)

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.