Generate GD images of Bio::Seq objects

 The Bio::Graphics::Panel class provides drawing and formatting
 services for any object that implements the Bio::SeqFeatureI
 interface, including Ace::Sequence::Feature, Das::Segment::Feature and
 Bio::DB::Graphics objects. It can be used to draw sequence
 annotations, physical (contig) maps, protein domains, or any other
 type of map in which a set of discrete ranges need to be laid out on
 the number line.