The Grand Configurator

This update dramatically improves the methods used to configure DCC++

• Auto detect and compile-time configuration of Signal Pins for either Arduino Mega 2560 or Arduino Uno
• Compile-time setting to configure Motor Shield Pins for either Arduino or Pololu MC33926
• New methods for creating Turnout and Sensor definitions (see comments in Accessories.cpp and Sensor.cpp):
  • existing command now has variations to add/edit/delete Turnouts
  • new command to add/edit/delete Sensors
• New and commands to store and clear Turnout and Sensor definitions in EEPROM
• Improved Sensor checking:
  • is returned when Sensor Pin changes from HIGH to LOW state (same as in previous version)
  • is returned when Sensor Pin changes back from LOW to HIGH state (new feature)