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/include/SerialPort.h

@@ -0,0 +1,80 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2008-2017. 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 <string>
+
+#include "ErrorBase.h"
+#include "llvm/StringRef.h"
+
+namespace frc {
+
+/**
+ * Driver for the RS-232 serial port on the roboRIO.
+ *
+ * The current implementation uses the VISA formatted I/O mode.  This means that
+ * all traffic goes through the fomatted buffers.  This allows the intermingled
+ * use of Printf(), Scanf(), and the raw buffer accessors Read() and Write().
+ *
+ * More information can be found in the NI-VISA User Manual here:
+ *   http://www.ni.com/pdf/manuals/370423a.pdf
+ * and the NI-VISA Programmer's Reference Manual here:
+ *   http://www.ni.com/pdf/manuals/370132c.pdf
+ */
+class SerialPort : public ErrorBase {
+ public:
+  enum Parity {
+    kParity_None = 0,
+    kParity_Odd = 1,
+    kParity_Even = 2,
+    kParity_Mark = 3,
+    kParity_Space = 4
+  };
+  enum StopBits {
+    kStopBits_One = 10,
+    kStopBits_OnePointFive = 15,
+    kStopBits_Two = 20
+  };
+  enum FlowControl {
+    kFlowControl_None = 0,
+    kFlowControl_XonXoff = 1,
+    kFlowControl_RtsCts = 2,
+    kFlowControl_DtrDsr = 4
+  };
+  enum WriteBufferMode { kFlushOnAccess = 1, kFlushWhenFull = 2 };
+  enum Port { kOnboard = 0, kMXP = 1, kUSB = 2, kUSB1 = 2, kUSB2 = 3 };
+
+  SerialPort(int baudRate, Port port = kOnboard, int dataBits = 8,
+             Parity parity = kParity_None, StopBits stopBits = kStopBits_One);
+  ~SerialPort();
+
+  SerialPort(const SerialPort&) = delete;
+  SerialPort& operator=(const SerialPort&) = delete;
+
+  void SetFlowControl(FlowControl flowControl);
+  void EnableTermination(char terminator = '\n');
+  void DisableTermination();
+  int GetBytesReceived();
+  int Read(char* buffer, int count);
+  int Write(const char* buffer, int count);
+  int Write(llvm::StringRef buffer);
+  void SetTimeout(double timeout);
+  void SetReadBufferSize(int size);
+  void SetWriteBufferSize(int size);
+  void SetWriteBufferMode(WriteBufferMode mode);
+  void Flush();
+  void Reset();
+
+ private:
+  int m_resourceManagerHandle = 0;
+  int m_portHandle = 0;
+  bool m_consoleModeEnabled = false;
+  int m_port;
+};
+
+}  // namespace frc