chore: removing generated models from the repository

Author: jarrodek

.gitignore

@@ -58,3 +58,6 @@ node_modules
 coverage
 demo/vendor.js
 dist/
+
+# AMF models
+demo/models/*.json

.travis.yml

@@ -3,6 +3,9 @@ node_js: stable
 sudo: required
 addons:
   chrome: stable
+install:
+- npm ci
+- npm i -D @api-components/api-model-generator
 script:
 - npm test
 - if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then npm run test:sl; fi