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

wpilibc/src/main/native/cpp/Commands/WaitCommand.cpp

@@ -0,0 +1,27 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2011-2017. 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 "Commands/WaitCommand.h"
+
+using namespace frc;
+
+/**
+ * Creates a new WaitCommand with the given name and timeout.
+ *
+ * @param name    the name of the command
+ * @param timeout the time (in seconds) before this command "times out"
+ */
+WaitCommand::WaitCommand(double timeout)
+    : TimedCommand("Wait(" + std::to_string(timeout) + ")", timeout) {}
+
+/**
+ * Creates a new WaitCommand with the given timeout.
+ *
+ * @param timeout the time (in seconds) before this command "times out"
+ */
+WaitCommand::WaitCommand(const std::string& name, double timeout)
+    : TimedCommand(name, timeout) {}