message: add licence to package.json
diff: "type": "git",
  "url": "https://github.com/searchkit/searchkit.git"
  },
  + "license": "Apache-2.0",
  "scripts": {
  "versionup": "lerna version --conventional-commits --conventional-graduate --no-git-tag-version",
  "versionup:patch": "lerna version patch --conventional-commits --conventional-graduate --no-git-tag-version",
  