Adds HybridCustody contracts as environment dependencies for the example cross-account storefront listing transaction sell_item_in_child_from_parent.cdc. This transaction is useful for demonstrating how a marketplace could facilitate the listing of an NFT in a parent's child account in a Storefront contained in the parent account where the parent account receives funds from the sale.
Closes: #92
Adds HybridCustody contracts as environment dependencies for the example cross-account storefront listing transaction
sell_item_in_child_from_parent.cdc. This transaction is useful for demonstrating how a marketplace could facilitate the listing of an NFT in a parent's child account in a Storefront contained in the parent account where the parent account receives funds from the sale.