USF-3785: ACO PDP support

[rossbrandon]

Summary

Add PDP pre-rendering support for Commerce Optimizer (ACO) sites.

Tickets

USF-3785
USF-3786
USF-3770

Design Wiki

Changes

• Detect site type via config['adobe-commerce-optimizer'] or config.headers.cs has headers with the AC- prefix.
• Allow for configuring of category families (env var ACO_CATEGORY_FAMILIES). These families will contribute to the products fetched for PDP pre-rendering in addition to the first 10,000 products available in the catalog.
• Add logic for resolving category slugs from a list of category families. This logic can be reused for PLP pre-rendering as well.
• Category Tree queries added to actions/queries.js for retrieving category information from Catalog Service for ACO.

[keoko]

LGTM 🚀