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/ADXL362.h

@@ -0,0 +1,81 @@
+/*----------------------------------------------------------------------------*/
+/* 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 "frc/ErrorBase.h"
+#include "frc/SPI.h"
+#include "frc/interfaces/Accelerometer.h"
+#include "frc/smartdashboard/SendableBase.h"
+
+namespace frc {
+
+/**
+ * ADXL362 SPI Accelerometer.
+ *
+ * This class allows access to an Analog Devices ADXL362 3-axis accelerometer.
+ */
+class ADXL362 : public ErrorBase, public SendableBase, public Accelerometer {
+ public:
+  enum Axes { kAxis_X = 0x00, kAxis_Y = 0x02, kAxis_Z = 0x04 };
+  struct AllAxes {
+    double XAxis;
+    double YAxis;
+    double ZAxis;
+  };
+
+ public:
+  /**
+   * Constructor.  Uses the onboard CS1.
+   *
+   * @param range The range (+ or -) that the accelerometer will measure.
+   */
+  explicit ADXL362(Range range = kRange_2G);
+
+  /**
+   * Constructor.
+   *
+   * @param port  The SPI port the accelerometer is attached to
+   * @param range The range (+ or -) that the accelerometer will measure.
+   */
+  explicit ADXL362(SPI::Port port, Range range = kRange_2G);
+
+  virtual ~ADXL362() = default;
+
+  ADXL362(const ADXL362&) = delete;
+  ADXL362& operator=(const ADXL362&) = delete;
+
+  // Accelerometer interface
+  void SetRange(Range range) override;
+  double GetX() override;
+  double GetY() override;
+  double GetZ() override;
+
+  /**
+   * Get the acceleration of one axis in Gs.
+   *
+   * @param axis The axis to read from.
+   * @return Acceleration of the ADXL362 in Gs.
+   */
+  virtual double GetAcceleration(Axes axis);
+
+  /**
+   * Get the acceleration of all axes in Gs.
+   *
+   * @return An object containing the acceleration measured on each axis of the
+   *         ADXL362 in Gs.
+   */
+  virtual AllAxes GetAccelerations();
+
+  void InitSendable(SendableBuilder& builder) override;
+
+ private:
+  SPI m_spi;
+  double m_gsPerLSB = 0.001;
+};
+
+}  // namespace frc