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/AnalogOutput.h

@@ -0,0 +1,59 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2014-2018 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 <hal/AnalogOutput.h>
+
+#include "frc/ErrorBase.h"
+#include "frc/smartdashboard/SendableBase.h"
+
+namespace frc {
+
+/**
+ * MXP analog output class.
+ */
+class AnalogOutput : public ErrorBase, public SendableBase {
+ public:
+  /**
+   * Construct an analog output on the given channel.
+   *
+   * All analog outputs are located on the MXP port.
+   *
+   * @param channel The channel number on the roboRIO to represent.
+   */
+  explicit AnalogOutput(int channel);
+
+  ~AnalogOutput() override;
+
+  /**
+   * Set the value of the analog output.
+   *
+   * @param voltage The output value in Volts, from 0.0 to +5.0
+   */
+  void SetVoltage(double voltage);
+
+  /**
+   * Get the voltage of the analog output
+   *
+   * @return The value in Volts, from 0.0 to +5.0
+   */
+  double GetVoltage() const;
+
+  /**
+   * Get the channel of this AnalogOutput.
+   */
+  int GetChannel();
+
+  void InitSendable(SendableBuilder& builder) override;
+
+ protected:
+  int m_channel;
+  HAL_AnalogOutputHandle m_port;
+};
+
+}  // namespace frc