Move CameraServer and WPILib headers into their own folder

The old headers were moved into folders because doing so avoids polluting
the system include directories.

Folder names were also normalized to lowercase.

wpilibc/src/main/native/include/frc/AnalogAccelerometer.h

@@ -0,0 +1,116 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2008-2018 FIRST. All Rights Reserved.                        */
+/* Open Source Software - may be modified and shared by FRC teams. The code   */
+/* must be accompanied by the FIRST BSD license file in the root directory of */
+/* the project.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+#include <memory>
+
+#include "frc/AnalogInput.h"
+#include "frc/ErrorBase.h"
+#include "frc/PIDSource.h"
+#include "frc/smartdashboard/SendableBase.h"
+
+namespace frc {
+
+/**
+ * Handle operation of an analog accelerometer.
+ *
+ * The accelerometer reads acceleration directly through the sensor. Many
+ * sensors have multiple axis and can be treated as multiple devices. Each is
+ * calibrated by finding the center value over a period of time.
+ */
+class AnalogAccelerometer : public ErrorBase,
+                            public SendableBase,
+                            public PIDSource {
+ public:
+  /**
+   * Create a new instance of an accelerometer.
+   *
+   * The constructor allocates desired analog input.
+   *
+   * @param channel The channel number for the analog input the accelerometer is
+   *                connected to
+   */
+  explicit AnalogAccelerometer(int channel);
+
+  /**
+   * Create a new instance of Accelerometer from an existing AnalogInput.
+   *
+   * Make a new instance of accelerometer given an AnalogInput. This is
+   * particularly useful if the port is going to be read as an analog channel as
+   * well as through the Accelerometer class.
+   *
+   * @param channel The existing AnalogInput object for the analog input the
+   *                accelerometer is connected to
+   */
+  explicit AnalogAccelerometer(AnalogInput* channel);
+
+  /**
+   * Create a new instance of Accelerometer from an existing AnalogInput.
+   *
+   * Make a new instance of accelerometer given an AnalogInput. This is
+   * particularly useful if the port is going to be read as an analog channel as
+   * well as through the Accelerometer class.
+   *
+   * @param channel The existing AnalogInput object for the analog input the
+   *                accelerometer is connected to
+   */
+  explicit AnalogAccelerometer(std::shared_ptr<AnalogInput> channel);
+
+  ~AnalogAccelerometer() override = default;
+
+  /**
+   * Return the acceleration in Gs.
+   *
+   * The acceleration is returned units of Gs.
+   *
+   * @return The current acceleration of the sensor in Gs.
+   */
+  double GetAcceleration() const;
+
+  /**
+   * Set the accelerometer sensitivity.
+   *
+   * This sets the sensitivity of the accelerometer used for calculating the
+   * acceleration. The sensitivity varies by accelerometer model. There are
+   * constants defined for various models.
+   *
+   * @param sensitivity The sensitivity of accelerometer in Volts per G.
+   */
+  void SetSensitivity(double sensitivity);
+
+  /**
+   * Set the voltage that corresponds to 0 G.
+   *
+   * The zero G voltage varies by accelerometer model. There are constants
+   * defined for various models.
+   *
+   * @param zero The zero G voltage.
+   */
+  void SetZero(double zero);
+
+  /**
+   * Get the Acceleration for the PID Source parent.
+   *
+   * @return The current acceleration in Gs.
+   */
+  double PIDGet() override;
+
+  void InitSendable(SendableBuilder& builder) override;
+
+ private:
+  /**
+   * Common function for initializing the accelerometer.
+   */
+  void InitAccelerometer();
+
+  std::shared_ptr<AnalogInput> m_analogInput;
+  double m_voltsPerG = 1.0;
+  double m_zeroGVoltage = 2.5;
+};
+
+}  // namespace frc