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

wpilibcIntegrationTests/src/FRCUserProgram/cpp/DriverStationTest.cpp

@@ -0,0 +1,35 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2014-2017. 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.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "DriverStation.h"  // NOLINT(build/include_order)
+
+#include "TestBench.h"
+#include "Utility.h"
+#include "gtest/gtest.h"
+
+using namespace frc;
+
+constexpr double TIMER_TOLERANCE = 0.2;
+constexpr int64_t TIMER_RUNTIME = 1000000;  // 1 second
+
+class DriverStationTest : public testing::Test {};
+
+/**
+ * Test if the WaitForData function works
+ */
+TEST_F(DriverStationTest, WaitForData) {
+  uint64_t initialTime = GetFPGATime();
+
+  for (int i = 0; i < 50; i++) {
+    DriverStation::GetInstance().WaitForData();
+  }
+
+  uint64_t finalTime = GetFPGATime();
+
+  EXPECT_NEAR(TIMER_RUNTIME, finalTime - initialTime,
+              TIMER_TOLERANCE * TIMER_RUNTIME);
+}