Configurable query string include/exclude from cache

[timkelty]

Currently, Craft Cloud uses the full URL (with query string) as the "cache key" for finding static cache matches.
However, we preemptively exclude common JS/campaign tracking params:

gclid
fbclid
mc_eid
utm_source
utm_campaign
utm_term
utm_id
mc_cid
utm_medium
utm_content 

Ideally, projects could configure this list or switch it from an exclude list to an include.