Fix cs
	modifié:         core/lib/Thelia/Core/DependencyInjection/Loader/XmlFileLoader.php
	modifié:         core/lib/Thelia/Form/ImportForm.php
Add promo import and export in prices
	modifié:         core/lib/Thelia/ImportExport/Export/Type/ProductPricesExport.php
	modifié:         core/lib/Thelia/ImportExport/Import/Type/ProductPricesImport.php
	modifié:         core/lib/Thelia/Tests/ImportExport/Export/ProductPricesExportTest.php
	modifié:         core/lib/Thelia/Tests/ImportExport/Import/ProductPricesImportTest.php
Change names to allow import and export prices with taxes
	modifié:         core/lib/Thelia/Config/Resources/export.xml
	modifié:         core/lib/Thelia/Config/Resources/import.xml