Plug a memory leak

Add function HICUMdelete() to remove model->HICUMversion

src/spicelib/devices/hicum2/hicum2ext.h

@@ -10,7 +10,7 @@ Model Author         : 1990 Michael Schröter TU Dresden
 extern int HICUMacLoad(GENmodel *,CKTcircuit*);
 extern int HICUMask(CKTcircuit *,GENinstance*,int,IFvalue*,IFvalue*);
 extern int HICUMconvTest(GENmodel*,CKTcircuit*);
-extern int HICUMdelete(GENinstance*);
+extern int HICUMmDelete(GENmodel*);
 extern int HICUMgetic(GENmodel*,CKTcircuit*);
 //extern int HICUMload(GENmodel*,CKTcircuit*);//moved to hicumL2.hpp
 extern int HICUMmAsk(CKTcircuit*,GENmodel*,int,IFvalue*);

src/spicelib/devices/hicum2/hicum2init.c

@@ -52,7 +52,7 @@ SPICEdev HICUMinfo = {
     .DEVacLoad = HICUMacLoad,
     .DEVaccept = NULL,
     .DEVdestroy = NULL,
-    .DEVmodDelete = NULL,
+    .DEVmodDelete = HICUMmDelete,
     .DEVdelete = NULL,
     .DEVsetic = HICUMgetic,
     .DEVask = HICUMask,

src/spicelib/devices/hicum2/hicum2setup.c

@@ -861,3 +861,13 @@ HICUMunsetup(
     }
     return OK;
 }
+
+int
+HICUMmDelete(GENmodel* gen_model)
+{
+    HICUMmodel* model = (HICUMmodel*)gen_model;
+
+    FREE(model->HICUMversion);
+
+    return OK;
+}