Adding descriptions to schema of properties.

Takes any description attribute assigned to a field, and includes it in
the output schema. More work needs to be done with regards to the
potential ambiguity of this description vs any description assigned to
the underlying type of the field.
Revert "Adding descriptions to schema of properties."

This reverts commit e6506bd8064f0ce4f06268270b8d52efb39a7acb.