Add CBOR2 diagnostics in place of bytes list.

Much more useful, generally.

Author: BigBlueHat

package.json

@@ -25,6 +25,7 @@
     "@digitalbazaar/cborld": "^8.0.0",
     "@rollup/plugin-commonjs": "^28.0.3",
     "@rollup/plugin-node-resolve": "^16.0.1",
+    "cbor2": "^2.0.1",
     "codemirror": "^6.0.1",
     "petite-vue": "^0.4.1",
     "rollup": "^4.40.1",