📓 Search Optimal optimization among multiple EPs (#1092)

## Describe your changes

The tutorial to try to search optimal optimization among multiple EPs.

## Checklist before requesting a review
- [ ] Add unit tests for this change.
- [ ] Make sure all tests can pass.
- [ ] Update documents if necessary.
- [ ] Lint and apply fixes to your code by running `lintrunner -a`
- [ ] Is this a user-facing change? If yes, give a description of this
change to be included in the release notes.
- [ ] Is this PR including examples changes? If yes, please remember to
update [example
documentation](https://github.com/microsoft/Olive/blob/main/docs/source/examples.md)
in a follow-up PR.

## (Optional) Issue link

examples/bert/bert_auto_opt_gpu.json → examples/bert/notebook/bert_auto_opt_gpu.json

@@ -69,9 +69,10 @@
         "host": "local_system",
         "target": "local_system",
         "cache_dir": "cache",
+        "packaging_config": {
+            "type": "Zipfile",
+            "name": "bert"
+        },
         "output_dir": "models/bert_gpu"
-    },
-    "auto_optimizer_config": {
-        "precisions": ["fp16"]
     }
 }