merged from frcsim branch

verified to work on real robots
adds sim eclipse plugins, fixed JavaGazebo, made wpilibC++Sim build on windows
 - Java and C++ simulation robot programs run on windows
 - simulation eclipse plugin delivers models and gazebo plugins
 - Java Gazebo now respects GAZEBO_IP variables and can work across networks
 - hal and network tables win32 hacked to work on windows
 - smart dashboard broken on windows due to network tables hacks
 - wpilibC++Sim, gz_msgs, and frcsim_gazebo_plugins build with CMake
 - removed constexpr for cross platform compatibility
 - msgs generated using .protos as a part of build process
 - some spare and unused cmake/pom files deleted
 - simulation ubuntu debians removed entirely
 - refactored CMake project flags and macros
 - updated to match non-sim C++ API
 - fixed and updated documentation
 - servo added to simulation

Change-Id: Ia702ff0f1fee10d77f543810ad88f56696443b05

wpilibc/wpilibC++Sim/src/SampleRobot.cpp

@@ -7,12 +7,22 @@
 #include "SampleRobot.h"
 
 #include <stdio.h>
-#include <unistd.h>
 #include "Timer.h"
 #include "SmartDashboard/SmartDashboard.h"
 #include "LiveWindow/LiveWindow.h"
 #include "networktables/NetworkTable.h"
 
+#if defined(_UNIX)
+	#include <unistd.h>
+#elif defined(_WIN32)
+  #include <windows.h>
+  void sleep(unsigned milliseconds)
+	    {
+	        Sleep(milliseconds);
+	    }
+#endif
+
+
 SampleRobot::SampleRobot()
 	: m_robotMainOverridden (true)
 {