message: add primer-tables
diff: "primer-layout": "1.4.9",
  "primer-navigation": "1.5.7",
  "primer-product": "5.6.7",
  + "primer-tables": "1.4.9",
  "primer-tooltips": "1.5.7",
  - "primer-utilities": "4.12.0",
  "primer-typography": "1.0.1",
  + "primer-utilities": "4.12.0",
  "react": "16.4.2",
  "react-dom": "16.4.2",
  "react-emotion": "9.2.8",
  