Modify parcel query to not require all graphs on startup

[irismoini]

↪️ Pull Request

This PR modifies Parcel-query so that it no longer strictly requires all of Parcel's graphs or bundleInfo on startup.

💻 Examples

For example you no longer need the bundle graph to do queries on the asset graph. If you run parcel-query with .stats and the bundleGraph is undefined you will now get the following output:

╔═════════════════════════════════════════╗
║        # Asset Graph Node Counts        ║
╟────────────────────┬────────────────────╢
║ asset              │ 33484              ║
╟────────────────────┼────────────────────╢
║ dependency         │ 144668             ║
╟────────────────────┼────────────────────╢
║ asset_group        │ 35048              ║
╚════════════════════╧════════════════════╝

Bundle Graph could not be found.

and Parcel-query will not exit. Previously the output would simply be

Bundle Graph could not be found

on startup and Parcel-query would exit.

🚨 Test instructions

Tested manually with different scenarios. i.e. setting assetGraph to undefined and running .getBundles

✔️ PR Todo

• Added/updated unit tests for this change
• Filled out test instructions (In case there aren't any unit tests)
• Included links to related issues/PRs