Add two teacher mentoring pages
Add two teacher mentoring pages

# These pages are similar to 6e5ad2627cc96a32323c8fb8ed0e3da585ed9f6c
# in that they offer some security to be teacher only, but are bypassable.
# Since the embedded content is also accessible directly, this isn't really
# an issue.

ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app,ucam-cl-dtg/isaac-app