xml reader which extracts customizable info and write it in a csv
Reference: Full example https://gist.github.com/kwmt/6135123#file-parsetvdb-go
step by step https://larry-price.com/blog/2015/12/04/xml-parsing-in-go/
type, attr https://play.golang.org/p/qiSoxxb5tp
type any https://stackoverflow.com/questions/30256729/how-to-traverse-through-xml-data-in-golang