Set seq_id and strand on non-canonical features as well.

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>
Directly use addTranscript in duplicate features.

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>
Styles for plus and minus non-canonical start/stop codon.

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>