message: feat(percy): adding percy snapshot testing for carbon expressibve
diff: "start": "gulp dev",
  "ci-check": "yarn build",
  "build-storybook": "cross-env BABEL_ENV=es build-storybook",
  - "storybook": "start-storybook -p 9000"
  + "storybook": "start-storybook -p 9000",
  + "visual-snapshot": "yarn build-storybook && percy-storybook --widths=320,1280"
  },
  "dependencies": {
  "@carbon/grid": "10.10.2",
  "@babel/preset-env": "^7.7.4",
  "@babel/preset-react": "^7.7.4",
  "@carbon/icons-react": "^10.8.0",
  + "@percy/storybook": "^3.3.0",
  "@storybook/addon-actions": "^5.3.0",
  "@storybook/addon-knobs": "^5.3.0",
  "@storybook/addon-storysource": "^5.3.0",
  