add support for STRT-Seq-C1 with 5' scRNA (UMI)

CGTCTAAT

AGACTCGT

GCACGTCA

TCAACGAC

ATTTAGCG

ATACAGAC

TGCGTAGG

TGGAGCTC

TGAATACC

TCTCACAC

TACTGGTA

ACGATAGG

GATGTCGA

TTACGGGT

CACAGCAT

CTTTGACA

CCTTCAAG

GAGTCCTG

CACACTGA

GTTACAGG

GGACCTTT

TTCCGTTC

ACTGTTTG

AAGTGGCT

CTGTACAA

CGCAAAGT

GTGCATGA

GTCATTAG

AGCTCCTT

TCACCCGA

GTTGCCAC

TGTACCAA

AACGAGGT

AGCCACCA

GGTAATCA

CCAGTCCA

ACCTCAGC

GGTGGACT

GACAAACC

TAACTCCG

ACACCGTG

GTAGAACG

GGATTGAC

ACGTATCC

TTCGGAAA

AGTTGTGT

AAGCACAT

CTGTCATT

GTCCTATA

CTACGCTG

GGGATTGT

TGATGTAG

TTCGCTGT

GAAGACTT

TCTGGGCA

CAACTAGA

CCATGGGA

ATGCGACG

GAGGGTAG

CGGGTGAA

GCCATCTT

GCATAATC

TCTATGGT

AGGACTTA

CGTGATTC

ACTAGCGA

GTAACTCC

CGGAAGTG

CCGAGTAC

GACGCAAT

ACCTGGAG

CATGGGTT

ATTCCTAG

AATCATGC

GCTTCCCT

AGGTAAAG

CCACAACT

ACAGGCAT

TTTGTGTC

TGAGCATA

TTAGACGC

CGCTTGCT

AGTCTGCC

CATAGTCG

TCTTGCTG

GGGACAAC

ATATTCCC

TGTTAAGC

TACGCCTC

CACTTATC

ACCGCTAA

TAAGGTCC

GAAAGGTG

ACGTTGTA

GCAGAGAA

GCATTTGG