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.

hal/src/main/native/sim/mockdata/AnalogOutDataInternal.h

@@ -0,0 +1,45 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2017-2018 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 <atomic>
+#include <memory>
+
+#include <wpi/mutex.h>
+
+#include "mockdata/AnalogOutData.h"
+#include "mockdata/NotifyListenerVector.h"
+
+namespace hal {
+class AnalogOutData {
+ public:
+  int32_t RegisterVoltageCallback(HAL_NotifyCallback callback, void* param,
+                                  HAL_Bool initialNotify);
+  void CancelVoltageCallback(int32_t uid);
+  void InvokeVoltageCallback(HAL_Value value);
+  double GetVoltage();
+  void SetVoltage(double voltage);
+
+  int32_t RegisterInitializedCallback(HAL_NotifyCallback callback, void* param,
+                                      HAL_Bool initialNotify);
+  void CancelInitializedCallback(int32_t uid);
+  void InvokeInitializedCallback(HAL_Value value);
+  HAL_Bool GetInitialized();
+  void SetInitialized(HAL_Bool initialized);
+
+  virtual void ResetData();
+
+ private:
+  wpi::mutex m_registerMutex;
+  std::atomic<double> m_voltage{0.0};
+  std::shared_ptr<NotifyListenerVector> m_voltageCallbacks = nullptr;
+  std::atomic<HAL_Bool> m_initialized{0};
+  std::shared_ptr<NotifyListenerVector> m_initializedCallbacks = nullptr;
+};
+extern AnalogOutData* SimAnalogOutData;
+}  // namespace hal