Add student info to Bulk Export Grades

[umar221b]

• Adds student's first name, last name, section, and lecture to the Bulk Grades Export in an assignment.
• Removes the colon after each column's title.

Motivation and Context

We are using the course for multiple sections. We needed a fast way to know each student's section when we exported the grades, along with their names.

How Has This Been Tested?

On the Docker setup, I downloaded an export.

Types of changes

• 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 change)

Checklist:

• I have run rubocop for style check. If you haven't, run overcommit --install && overcommit --sign to use pre-commit hook for linting
• My change requires a change to the documentation, which is located at Autolab Docs
• I have updated the documentation accordingly, included in this PR

Other issues / help required

I appended all the new columns to the end of the export just in case someone automates pulling data out of the exports - this way their column numbers should not change. Just wanted to point that out in case you think it might cause any issues.

[evanyeyeye]

LGTM.