github: remote source provider

extensions/github/package.json

@@ -14,6 +14,9 @@
   "activationEvents": [
     "*"
   ],
+  "extensionDependencies": [
+    "vscode.git"
+  ],
   "main": "./out/extension.js",
   "scripts": {
     "vscode:prepublish": "npm run compile",
@@ -21,6 +24,8 @@
     "watch": "gulp watch-extension:github"
   },
   "dependencies": {
+    "@octokit/rest": "^17.9.1",
+    "tunnel": "^0.0.6",
     "vscode-nls": "^4.1.2"
   },
   "devDependencies": {