add prototype for start and end system

src/main/scala/eu/nomad_lab/normalizers/PrototypeNormalizer.scala

@@ -109,8 +109,8 @@ object PrototypesNormalizer extends ExternalNormalizerGenerator(
 
           val nSys = sysTable.lengthL
           if (nSys > 0)
-            //  outputSysSection(sysTable(0))
-            //if (nSys > 1)
+            outputSysSection(sysTable(0))
+          if (nSys > 1)
             outputSysSection(sysTable(nSys - 1))
 
           writeOut("]")