Parser for B3 lines is needed

[egelja]

It appears that B3 is the Meet Contact info:
groups.google.com/g/sdif-forum/c/jGi-watQucs

// +----Line code (A1 = File Descriptor)
// (B1 = Meet Information)
// (B2 = Meet Address)
// (B3 = Meet Contact)

And there currently is not a line parser for B3:
master/hytek_parser/hy3/line_parsers/init.py#L23

#13 (comment)