[hal, wpilib] Add initial systemcore counter implementation (#7723)

wpilibc/src/main/native/include/frc/simulation/UltrasonicSim.h

@@ -1,56 +0,0 @@
-// Copyright (c) FIRST and other WPILib contributors.
-// Open Source Software; you can modify and/or share it under the terms of
-// the WPILib BSD license file in the root directory of this project.
-
-#pragma once
-
-#include <hal/SimDevice.h>
-#include <units/length.h>
-
-namespace frc {
-
-class Ultrasonic;
-
-namespace sim {
-
-/**
- * Class to control a simulated {@link Ultrasonic}.
- */
-class UltrasonicSim {
- public:
-  /**
-   * Constructor.
-   *
-   * @param ultrasonic The real ultrasonic to simulate
-   */
-  explicit UltrasonicSim(const Ultrasonic& ultrasonic);
-
-  /**
-   * Constructor.
-   *
-   * @param ping unused.
-   * @param echo the ultrasonic's echo channel.
-   */
-  UltrasonicSim(int ping, int echo);
-
-  /**
-   * Sets if the range measurement is valid.
-   *
-   * @param valid True if valid
-   */
-  void SetRangeValid(bool valid);
-
-  /**
-   * Sets the range measurement.
-   *
-   * @param range The range.
-   */
-  void SetRange(units::inch_t range);
-
- private:
-  hal::SimBoolean m_simRangeValid;
-  hal::SimDouble m_simRange;
-};
-
-}  // namespace sim
-}  // namespace frc