1095417: Migrate entitlements across distributors

:+1: definitely change the query param. Just think about what it would be like to use this from curl? would you want to type in destination_consumer_uuid. Damn that was actually hard to type I had 3 typos to fix. I think I prefer ```to_consumer`` or ```dest_consumer```. ```dest``` and ```src``` are valid abbreviations for this sort of thing.