Added Sha1sum wrapper

biopet-framework/src/main/java/nl/lumc/sasc/biopet/wrappers/Sha1sum.scala

+package nl.lumc.sasc.biopet.wrappers
+
+import nl.lumc.sasc.biopet.core._
+import org.broadinstitute.sting.queue.function.CommandLineFunction
+import org.broadinstitute.sting.commandline._
+import java.io.File
+
+class Sha1sum(val globalConfig: Config) extends CommandLineFunction {
+  def this() = this(new Config(Map()))
+  this.analysisName = "sha1sum"
+  val config: Config = globalConfig.getAsConfig("sha1sum")
+  logger.debug("Config for " + this.analysisName + ": " + config)
+  
+  @Input(doc="Zipped file") var in: File = _
+  @Output(doc="Unzipped file") var out: File = _
+  
+  def commandLine = "sha1sum %s > %s".format(in, out)
+}
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