add r1 primer and r2 transposon to bamflag

[cmatKhan]

Description of feature

M03700:571:000000000-LVF8K:1:2109:20051:25838_RT-AATTCACTACGTCAACA;RS-HinP1I;TF-GCR1 0 I 1431 0 38M37S * 0 0 GAAGTGACGCATATTCTATACGGCCCGACGCGACGCGCTCGAATAGTAGCAGATCGGAAGAGCGGTTCAGCAGGA HGHHHHBHFGGFGHHHHHGHHHGGGGF?EG?ECG?EEEEEEGEGFHHHHFGGFFHHGE/EGFGDGDGGHGHHHHG NM:i:0 MD:Z:38 AS:i:38 RT:Z:AATTCACTACGTCAACA RS:Z:HinP1I TF:Z:GCR1 XS:i:1430 XI:i:1429 XE:i:1430 XZ:Z:A

this would be better if it had the r1 primer and r2 transposon sequence as tags