Fixes HALSim_Print build to be the standardized pattern (#721)

Now publishes in zips, and with proper artifacts.

The code files just moved, and no changes.

simulation/halsim_print/src/main/native/cpp/PrintPWM.cpp

@@ -0,0 +1,29 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2017 FIRST. 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 "PrintPWM.h"
+
+#include <iostream>
+
+#include "MockData/HAL_Value.h"
+#include "MockData/NotifyListener.h"
+#include "MockData/PWMData.h"
+
+static void PWMCallback(const char* name, void* param,
+                        const struct HAL_Value* value) {
+  auto pwm = static_cast<PrintPWM*>(param);
+  pwm->Publish(value->data.v_double);
+}
+
+PrintPWM::PrintPWM(int port) {
+  m_port = port;
+  HALSIM_RegisterPWMSpeedCallback(port, PWMCallback, this, false);
+}
+
+void PrintPWM::Publish(double value) {
+  std::cout << "PWM " << m_port << ": " << value << std::endl;
+}

simulation/halsim_print/src/main/native/cpp/main.cpp

@@ -0,0 +1,34 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2017 FIRST. 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 <iostream>
+
+#include <HAL/Ports.h>
+
+#include "HALSimPrint.h"
+#include "PrintPWM.h"
+
+/**
+ * Currently, robots never terminate, so we keep a single static object
+ * and it is never properly released or cleaned up.
+ */
+static HALSimPrint halsim;
+
+extern "C" {
+#if defined(WIN32) || defined(_WIN32)
+__declspec(dllexport)
+#endif
+    int HALSIM_InitExtension(void) {
+  std::cout << "Print Simulator Initializing." << std::endl;
+
+  int pwmCount = HAL_GetNumPWMChannels();
+  halsim.m_pwms.reserve(pwmCount);
+  for (int i = 0; i < pwmCount; i++) halsim.m_pwms.emplace_back(i);
+
+  return 0;
+}
+}  // extern "C"