Add datasources

Extensions/DataSources/.gitignore

@@ -0,0 +1,4 @@
+npm-debug.log
+node_modules/
+dist/
+*.vsix

Extensions/DataSources/azure-devops-extension.json

@@ -0,0 +1,29 @@
+{
+  "manifestVersion": 1,
+  "id": "samples",
+  "publisher": "Santosh",
+  "scopes": [
+    "vso.project",
+    "vso.serviceendpoint_query"
+  ],
+  "version": "1.0.0",
+  "name": "Data Sources",
+  "description": "Azure DevOps extension sample",
+  "categories": [
+    "Azure Pipelines"
+  ],
+  "targets": [
+    {
+      "id": "Microsoft.VisualStudio.Services"
+    }
+  ],
+  "icons": {
+    "default": "logo.png"
+  },
+  "files": [
+    {
+      "path": "dist",
+      "addressable": true
+    }
+  ]
+}

Extensions/DataSources/azure-pipelines-steps.yml

@@ -0,0 +1,13 @@
+steps:
+- task: NodeTool@0
+  inputs:
+    versionSpec: '8.12.0'
+  displayName: 'Install Node.js'
+
+- script: |
+    npm ci
+  displayName: 'Install dependencies'
+
+- script: |
+    npm run build
+  displayName: 'Compile and package'