Permission on "team discussions"

• GET /teams/:team_id/discussions (:read)
• POST /teams/:team_id/discussions (:write)
• GET /teams/:team_id/discussions/:discussion_number (:read)
• PATCH /teams/:team_id/discussions/:discussion_number (:write)
• DELETE /teams/:team_id/discussions/:discussion_number (:write)
• GET /teams/:team_id/discussions/:discussion_number/comments (:read)
• POST /teams/:team_id/discussions/:discussion_number/comments (:write)
• GET /teams/:team_id/discussions/:discussion_number/comments/:comment_number (:read)
• PATCH /teams/:team_id/discussions/:discussion_number/comments/:comment_number (:write)
• DELETE /teams/:team_id/discussions/:discussion_number/comments/:comment_number (:write)
• GET /teams/:team_id/discussions/:discussion_number/comments/:comment_number/reactions (:read)
• POST /teams/:team_id/discussions/:discussion_number/comments/:comment_number/reactions (:write)
• GET /teams/:team_id/discussions/:discussion_number/reactions (:read)
• POST /teams/:team_id/discussions/:discussion_number/reactions (:write)