message: include bootstrap files into npm package
diff: "survey.core.js",
  "survey.core.min.js",
  "survey.i18n.js",
  - "survey.i18n.min.js"
  + "survey.i18n.min.js",
  + "bootstrap-integration.d.ts",
  + "bootstrap-integration.js",
  + "bootstrap-integration.min.js",
  + "bootstrap-material-integration.d.ts",
  + "bootstrap-material-integration.js",
  + "bootstrap-material-integration.min.js"
  ],
  "main": "survey.core.js",
  "repository": {
  