Add tool to create foxglove extensions

This tool lets users create new foxglove extensions by running the
equivalent of `npm init foxglove-extension@latest <patch>`.

A future patch will actually create a new extension using this tool.

Change-Id: Ifb3ca868fa72c30477a4943c3a6a805b06d0642d
Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
diff --git a/package.json b/package.json
index f37a2b6..5f7b0f2 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,7 @@
     "@types/babel__generator": "^7.6.8",
     "@types/pako": "2.0.3",
     "angularx-qrcode": "^16.0.2",
+    "create-foxglove-extension": "^0.8.6",
     "html-insert-assets": "0.14.3",
     "cypress": "13.3.1",
     "pako": "2.1.0",