Moved sample metrics to other directory

public/shiva/src/main/scala/nl/lumc/sasc/biopet/pipelines/shiva/ShivaTrait.scala

@@ -254,7 +254,7 @@ trait ShivaTrait extends MultiSampleQScript with SummaryQScript with Reference {
         val bamMetrics = new BamMetrics(qscript)
         bamMetrics.sampleId = Some(sampleId)
         bamMetrics.inputBam = preProcessBam.get
-        bamMetrics.outputDir = sampleDir
+        bamMetrics.outputDir = new File(sampleDir, "metrics")
         bamMetrics.init
         bamMetrics.biopetScript
         addAll(bamMetrics.functions)