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

udpquieck.c

@@ -106,3 +106,8 @@ int QuieckAction(SConnection * pCon, SicsInterp * pSics, void *pData,
   SCSendOK(pCon);
   return 1;
 }
+/*--------------------------------------------------------------------------*/
+void UdpInit(void)
+{
+  AddCommand(pServ->pSics, "udpquieck", QuieckAction, KillQuieck, NULL);
+}