add cal_aligned_percentage.pl
add cal_aligned_percentage.pl

ytchen0323/cloud-scale-bwamem,ytchen0323/cloud-scale-bwamem,ytchen0323/cloud-scale-bwamem,ytchen0323/cloud-scale-bwamem,ytchen0323/cloud-scale-bwamem,ytchen0323/cloud-scale-bwamem