restructured configuration (ofac.c)

- ofac.c contains now only the command in initialisation function list
- the other functions are moved to sicsutil.c
- moved DoubleTime and the content of access.c to sicsutil.c
- moved some initialisation code from ofac.c to the corresponding modules

commandlog.c

@@ -516,3 +516,8 @@ void CommandLogClose(void *pData)
   if (pTail)
     deleteCircular(pTail);
 }
+/*-------------------------------------------------------------------------*/
+void CommandLogInit(void)
+{
+  AddCommand(pServ->pSics, "commandlog", CommandLog, CommandLogClose, NULL);
+}