Resolve "Include Phantompeakqualtools step"

Closes #5 (closed) Adds in phantompeakcalls step to produce plots.

workflow/conf/biohpc.config

@@ -27,6 +27,10 @@ process {
     module = ['python/3.6.1-2-anaconda',  'samtools/1.4.1', 'bedtools/2.26.0']
     cpus = 32
   }
+  $crossReads {
+    module = ['python/3.6.1-2-anaconda', 'phantompeakqualtools/1.2']
+    cpus = 32
+  }
 }
 
 params {