Update to 2018_v4 image and new build system. (#598)

* Revert "Force OpenCV to 3.1.0 (#602)"

This reverts commit 50ed55e8e2.

* Removes Simulation

* Removes old build system

* Removes old gtest

* Adds new gmock and gtest

* Updates to new ni-libraries

* removes MyRobot (to be replaced)

* moves files to new location

* Adds new sim backend and new test executables

* updates .styleguide and .gitignore

* Changes cpp WPILibVersion to a function

MSVC throws an AV with the old version.

* Disables USBCamera on all systems except for linux

* 2018 NI Libraries

* New build system

hal/src/main/native/include/HAL/AnalogTrigger.h

@@ -0,0 +1,47 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2016-2017. 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 <stdint.h>
+
+#include "HAL/Types.h"
+
+enum HAL_AnalogTriggerType : int32_t {
+  HAL_Trigger_kInWindow = 0,
+  HAL_Trigger_kState = 1,
+  HAL_Trigger_kRisingPulse = 2,
+  HAL_Trigger_kFallingPulse = 3
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+HAL_AnalogTriggerHandle HAL_InitializeAnalogTrigger(
+    HAL_AnalogInputHandle portHandle, int32_t* index, int32_t* status);
+void HAL_CleanAnalogTrigger(HAL_AnalogTriggerHandle analogTriggerHandle,
+                            int32_t* status);
+void HAL_SetAnalogTriggerLimitsRaw(HAL_AnalogTriggerHandle analogTriggerHandle,
+                                   int32_t lower, int32_t upper,
+                                   int32_t* status);
+void HAL_SetAnalogTriggerLimitsVoltage(
+    HAL_AnalogTriggerHandle analogTriggerHandle, double lower, double upper,
+    int32_t* status);
+void HAL_SetAnalogTriggerAveraged(HAL_AnalogTriggerHandle analogTriggerHandle,
+                                  HAL_Bool useAveragedValue, int32_t* status);
+void HAL_SetAnalogTriggerFiltered(HAL_AnalogTriggerHandle analogTriggerHandle,
+                                  HAL_Bool useFilteredValue, int32_t* status);
+HAL_Bool HAL_GetAnalogTriggerInWindow(
+    HAL_AnalogTriggerHandle analogTriggerHandle, int32_t* status);
+HAL_Bool HAL_GetAnalogTriggerTriggerState(
+    HAL_AnalogTriggerHandle analogTriggerHandle, int32_t* status);
+HAL_Bool HAL_GetAnalogTriggerOutput(HAL_AnalogTriggerHandle analogTriggerHandle,
+                                    HAL_AnalogTriggerType type,
+                                    int32_t* status);
+#ifdef __cplusplus
+}
+#endif