update pipeline to check for change files and verify api

azure-pipelines.yml

@@ -19,3 +19,8 @@ steps:
     yarn
     npm run build
   displayName: 'yarn install and build'
+
+- script: |
+    yarn verify-api
+    yarn check-for-changed-files
+  displayName: 'Verify API and Ensure Changed Files'

package.json

@@ -22,14 +22,14 @@
     "buildfast": "lerna run build -- --min",
     "buildto": "node ./scripts/monorepo/buildTo.js",
     "bundlesize": "cd scripts && npm run bundlesize",
-    "bundlesizecollect": "cd scripts && just-scripts bundle-size-collect",
+    "bundlesizecollect": "cd scripts && jyarn ust-scripts bundle-size-collect",
     "rebuild": "node ./scripts/invalidate-just-cache.js && npx lerna build --stream",
     "change": "beachball change",
-    "check-for-changed-files": "cd scripts && just-scripts check-for-modified-files",
+    "check-for-changed-files": "cd scripts && yarn just-scripts check-for-modified-files",
     "checkchange": "beachball check --changehint \"Run 'yarn change' to generate a change file\"",
     "code-style": "lerna run code-style --stream",
     "codepen": "cd packages/office-ui-fabric-react && node ../../scripts/local-codepen.js",
-    "generate-version-files": "cd scripts && just-scripts generate-version-files",
+    "generate-version-files": "cd scripts && yarnjust-scripts generate-version-files",
     "prettier": "node scripts/prettier.js",
     "publish:beachball": "beachball publish",
     "bump-versions": "beachball bump",

scripts/package.json

@@ -15,6 +15,9 @@
     "verify-api": "echo no api to verify",
     "update-api": "echo no api to update"
   },
+  "peerDependencies": {
+    "just-scripts": ">=0.28.1"
+  },
   "devDependencies": {
     "@babel/core": "^7.5.5",
     "@babel/preset-env": "^7.5.5",