Added method for review item versions

        item = self.find.review_item(rid)

        review = self.facades.reviews.delete_item(item=item)

        return SCHEMAS.dump('review', review), 204

@submissions_namespace.route('/<string:sid>/review/<string:rid>/versions')

@submissions_namespace.param('sid', 'Submission id')

@submissions_namespace.param('rid', 'Review item id')

@submissions_namespace.response(404, 'Submissions not found')

@submissions_namespace.response(404, 'Review item not found')

class SubmissionReviewItemVersions(CustomResource):

    @jwt_required

    def get(self, sid: str, rid: str):

        submission = self.find.submission(sid)

        course = submission.project.course

        log.debug(f"[REST] Get submission review versions"

                  f" by {self.client.log_name}: {submission.log_name}")

        self.permissions(course=course).require.read_submission(submission)

        item = self.find.review_item(rid)

        versions = item.versions.all()

        return SCHEMAS.dump('review_items', versions)