Add Signal-to-Noise to MiSeqQC_InteropSummary

[cbrumme]

Illumina doesn't include Signal-to-Noise in their summary, but it sounds like a good thing for us to track.

1. Add Signal-To-Noise field to MiSeqQC_InteropSummary
2. Populate it thusly:

Read1

$query = "Select AVG(SIGNAL_TO_NOISE) from SPECIMEN.MiSeqQC_CORRECTEDINTENSITIES where RUNID = ".$RunID." AND SIGNAL_TO_NOISE > -1 AND". $read1

Read2

$query = "Select AVG(SIGNAL_TO_NOISE) from SPECIMEN.MiSeqQC_CORRECTEDINTENSITIES where RUNID = ".$RunID." AND SIGNAL_TO_NOISE > -1 AND". $read2