DriveDistanceOffBoard Example Doesn't Seem to Work with Controller

[modelmat]

Describe the bug
I don't seem to be able to use the XboxController on Port 1 to control the drivetrain using the default command.

To Reproduce
Steps to reproduce the behavior:

1. Build examples and run the examples
2. Run the DriveDistanceOffboardexampl
3. Using an xboxcontroller connected to port two move the sticks and observed nothing happening on the DifferentialDrive widget.

Expected behavior
The robot moves in ArcadeDrive

Additional context
C++ - not sure if this happens in Java.

allwpilib/wpilibcExamples/src/main/cpp/examples/DriveDistanceOffboard/cpp/RobotContainer.cpp

Lines 19 to 25 in 4488e25

	m_drive.SetDefaultCommand(frc2::RunCommand(
	[this] {
	m_drive.ArcadeDrive(
	m_driverController.GetY(frc::GenericHID::kLeftHand),
	m_driverController.GetX(frc::GenericHID::kRightHand));
	},
	{&m_drive}));

[prateekma]

This is because the Set() method of the ExampleSmartMotorController class doesn't do anything. A potential fix would be to store the set value in a variable and return that in Get() so that it's visible in LW.