Add Service which exports Aggregated Stock data including reservations

[maghamed]

For integration Magento with external Sales Channels like Amazon, eBay, Google Shopping etc.
We should provide a possibility of exporting aggregated stock data, ideally with reservations placed.

We should take into account that Stock could be very big.

And provide a possibility to specify Qty for products with Manage Stock = 0, as some of sales channels do not support products without quantities

interface ExportStockDataInterface
{
       public function execute(SearchCriteriaInterface $searchCriteria, $qtyForNotManageStock): ResultInterface;
}