Permission on "pages"

• GET /repos/:owner/:repo/pages (:read)
• POST /repos/:owner/:repo/pages (:write)
• PUT /repos/:owner/:repo/pages (:write)
• DELETE /repos/:owner/:repo/pages (:write)
• GET /repos/:owner/:repo/pages/builds (:read)
• POST /repos/:owner/:repo/pages/builds (:write)
• GET /repos/:owner/:repo/pages/builds/:build_id (:read)
• GET /repos/:owner/:repo/pages/builds/latest (:read)