Allow XML format in CI from Azure Storage (u others) to Eventhouse

[Fran-Diaz]

When importing a file from an Azure Storage Account, by default it can be processed in several formats. XML, a fairly common format, is not currently supported and therefore cannot be parsed. It would be good to have this option.

https://blog.fabric.microsoft.com/en-us/blog/continuous-ingestion-from-azure-storage-to-eventhouse-p...