implementation of FCB barcode for arail tickets as specified in the IRS 90918-9
The implementation provides a java API for the ticket an encoding / decoding functions to convert the ticket to and from the ASN.1/UPER encoded byte array specified in IRS 90918-9 for the FCB (flexible content barcode).
2020-09: Extended to cover the upcoming dynamical bar code header (DOSIPAS) and version 2 of the FCB asn.1 specification