[DOC] Adding README for seqan_flexbar.
[DOC] Adding README for seqan_flexbar.

xp3i4/seqan,JohnReid/seqan,ktrappe/seqan,limeng12/seqan,hannespetur/SeqAnHTS,limeng12/seqan,ktrappe/seqan,xenigmax/seqan,bayolau/seqan,holtgrewe/seqan,bestrauc/seqan,limeng12/seqan,hannespetur/SeqAnHTS,hannespetur/SeqAnHTS,hannespetur/SeqAnHTS,hannespetur/SeqAnHTS,bestrauc/seqan,limeng12/seqan,bestrauc/seqan,budach/seqan,catkira/seqan,limeng12/seqan,limeng12/seqan,holtgrewe/seqan,bestrauc/seqan,hannespetur/SeqAnHTS,holtgrewe/seqan,budach/seqan,ktrappe/seqan,bayolau/seqan,xenigmax/seqan,catkira/seqan,JohnReid/seqan,limeng12/seqan,JohnReid/seqan,PF2-pasteur-fr/seqan,PF2-pasteur-fr/seqan,xenigmax/seqan,holtgrewe/seqan,PF2-pasteur-fr/seqan,budach/seqan,holtgrewe/seqan,bestrauc/seqan,xp3i4/seqan,xenigmax/seqan,xp3i4/seqan,JohnReid/seqan,xp3i4/seqan,bayolau/seqan,xenigmax/seqan,catkira/seqan,bayolau/seqan,xenigmax/seqan,hannespetur/SeqAnHTS,PF2-pasteur-fr/seqan,catkira/seqan,holtgrewe/seqan,ktrappe/seqan,hannespetur/SeqAnHTS,PF2-pasteur-fr/seqan,PF2-pasteur-fr/seqan,xp3i4/seqan,xenigmax/seqan,JohnReid/seqan,catkira/seqan,PF2-pasteur-fr/seqan,xp3i4/seqan,bestrauc/seqan,bestrauc/seqan,bayolau/seqan,holtgrewe/seqan,bestrauc/seqan,catkira/seqan,budach/seqan,catkira/seqan,bayolau/seqan,catkira/seqan,limeng12/seqan,JohnReid/seqan,JohnReid/seqan,bayolau/seqan,ktrappe/seqan,xenigmax/seqan,xp3i4/seqan,budach/seqan,PF2-pasteur-fr/seqan,budach/seqan,budach/seqan,ktrappe/seqan,holtgrewe/seqan,bayolau/seqan,budach/seqan,xp3i4/seqan,hannespetur/SeqAnHTS,ktrappe/seqan,ktrappe/seqan,PF2-pasteur-fr/seqan,xp3i4/seqan,ktrappe/seqan,limeng12/seqan,catkira/seqan,bayolau/seqan,JohnReid/seqan,JohnReid/seqan,budach/seqan