Added section render test

public/biopet-core/src/test/scala/nl/lumc/sasc/biopet/core/report/ReportSectionTest.scala

+package nl.lumc.sasc.biopet.core.report
+
+import org.scalatest.Matchers
+import org.scalatest.testng.TestNGSuite
+import org.testng.annotations.Test
+
+/**
+  * Created by pjvanthof on 24/02/16.
+  */
+class ReportSectionTest extends TestNGSuite with Matchers {
+
+  @Test
+  def testSectionRender: Unit = {
+    ReportSection("/template.ssp", Map("arg" -> "test")).render() shouldBe "test"
+    ReportSection("/template.ssp").render(Map("arg" -> "test")) shouldBe "test"
+  }
+}