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/include/mockdata/SPIData.h

@@ -0,0 +1,53 @@
+/*----------------------------------------------------------------------------*/
+/* 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
+
+#ifndef __FRC_ROBORIO__
+
+#include "NotifyListener.h"
+#include "hal/HAL.h"
+
+typedef void (*HAL_SpiReadAutoReceiveBufferCallback)(const char* name,
+                                                     void* param,
+                                                     unsigned char* buffer,
+                                                     int32_t numToRead,
+                                                     int32_t* outputCount);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void HALSIM_ResetSPIData(int32_t index);
+
+int32_t HALSIM_RegisterSPIInitializedCallback(int32_t index,
+                                              HAL_NotifyCallback callback,
+                                              void* param,
+                                              HAL_Bool initialNotify);
+void HALSIM_CancelSPIInitializedCallback(int32_t index, int32_t uid);
+HAL_Bool HALSIM_GetSPIInitialized(int32_t index);
+void HALSIM_SetSPIInitialized(int32_t index, HAL_Bool initialized);
+
+int32_t HALSIM_RegisterSPIReadCallback(int32_t index,
+                                       HAL_BufferCallback callback,
+                                       void* param);
+void HALSIM_CancelSPIReadCallback(int32_t index, int32_t uid);
+
+int32_t HALSIM_RegisterSPIWriteCallback(int32_t index,
+                                        HAL_ConstBufferCallback callback,
+                                        void* param);
+void HALSIM_CancelSPIWriteCallback(int32_t index, int32_t uid);
+
+int32_t HALSIM_RegisterSPIReadAutoReceivedDataCallback(
+    int32_t index, HAL_SpiReadAutoReceiveBufferCallback callback, void* param);
+void HALSIM_CancelSPIReadAutoReceivedDataCallback(int32_t index, int32_t uid);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif