findBySkuOnline
Finds a product via its SKU over the network, if the service is available.
Searches the local database first before making any network calls.
open fun findBySkuOnline(sku: String, productAvailableListener: OnProductAvailableListener, onlineOnly: Boolean)
Finds a product via its SKU over the network, if the service is available.
If onlineOnly is true, it does not search the local database first and only searches online.