Add API visibility for fees (offsite ads fee, transaction fee, listing auto-renewal fee)

[cervinakuy]

[disregard]

as per:
For those looking for detailed payment breakdowns, take a look at getShopPaymentAccountLedgerEntry & getShopPaymentAccountLedgerEntries on the API docs. I disregarded them at first, but they give you access to all shop payment data. Hopefully this helps someone out there!

[Dreamer2100]

Thank you so much, my friend