warnings cleared

EXRAIL2.cpp

@@ -680,7 +680,7 @@ void RMFT2::loop2() {
   case OPCODE_RESET:
     { 
       auto count=getOperand(1);
-      for (int i=0;i<count;i++) {
+      for (uint16_t i=0;i<count;i++) {
         killBlinkOnVpin(operand+i);
         IODevice::write(operand+i,opcode==OPCODE_SET);
       }

IO_EXSensorCAM.h

@@ -121,6 +121,7 @@ void _begin() {
 // Configuration isn't done frequently so we can use blocking I2C calls here, and so buffers can
 // be allocated from the stack to reduce RAM allocation.
 bool _configure(VPIN vpin, ConfigTypeEnum configType, int paramCount, int params[]) override { 
+  (void)configType; (void)params; // unused
   if(_verPrint) DIAG(F("_configure() driver IO_EXSensorCAM v0.%d.%d vpin: %d "), driverVer/100,driverVer%100,vpin);
   _verPrint=false;           //only give driver versions once
   if (paramCount != 1) return false;