Assorted bits (#138)

* LCN

* Prevent deprecated compiler warning

* Implement huge function numbers

* new commands

<! [cab]> forget locos.
<9> ESTOP ALL.
<D RESET> reboot arduino

* Waveform accuracy msg

* Drop post-write verify

* UNUSED_PIN current measure

and callback -2 for cv actions.

* Correct diags

* ESTOP a forget loco

* ESTOP loco on forget

* Avoid compiler warning

* current sensor offset

* Restore <1 JOIN> after prog track operation

* <!> ESTOP <-> FORGET

* Auto current offset detection

* manage current offset and diagnostics

* neater msg at startup

* Add startup message to LCN master

* DCC::setJoinRelayPin

Co-authored-by: Asbelos <asbelos@btinternet.com>

Turnouts.cpp

@@ -55,6 +55,11 @@ void Turnout::activate(bool state) {
 #ifdef EESTOREDEBUG
   DIAG(F("\nTurnout::activate(%d)\n"),state);
 #endif
+  if (data.address==LCN_TURNOUT_ADDRESS) {
+     // A LCN turnout is transmitted to the LCN master.
+     LCN::send('T',data.id,state);
+     return;   // The tStatus will be updated by a message from the LCN master, later.    
+  }
   if (state)
     data.tStatus|=STATUS_ACTIVE;
   else