message: add clean and release scripts
diff: }
  },
  "scripts": {
  + "clean": "rimraf out/",
  "compile": "tsc -p ./",
  "lint": "eslint --cache --ext .ts,.js .",
  "lint:fix": "eslint --fix --cache --ext .ts,.js .",
  + "release": "npm run clean && npm run lint && npm run compile && vsce package",
  "watch": "tsc -watch -p ./",
  "postinstall": "node ./node_modules/vscode/bin/install"
  },
  "eslint": "^6.3.0",
  "husky": "^3.0.2",
  "textmate-bailout": "^1.1.0",
  + "rimraf": "^3.0.0",
  "typescript": "^3.5.3",
  + "vsce": "^1.66.0",
  "vscode": "^1.1.14",
  "webpack": "^4.20.2"
  }
  