Check for UTF8 BOM flag before importing xml data

[BlueMatthew]

Sometimes iTunesMetadata in Info.plist generated by iTunes Backup is an UTF8 string with BOM flag. Attached is an example file.

Info.plist.zip

Refer: https://opensource.apple.com/source/CF/CF-1153.18/CFPropertyList.c.auto.html

[nikias]

Interesting, thanks for pointing this out. I will have to add detections and conversions for the other formats, but I think I can handle that :)