Fixes initialization when not using the provided main (#1085)

Helpful for simulation, which might not use our main.

wpilibc/src/main/native/cpp/DriverStation.cpp

@@ -818,6 +818,7 @@ void DriverStation::GetData() {
  * This is only called once the first time GetInstance() is called
  */
 DriverStation::DriverStation() {
+  HAL_Initialize(500, 0);
   m_waitForDataCounter = 0;
   m_joystickAxes = std::make_unique<HAL_JoystickAxes[]>(kJoystickPorts);
   m_joystickPOVs = std::make_unique<HAL_JoystickPOVs[]>(kJoystickPorts);

wpilibc/src/main/native/cpp/RobotBase.cpp

@@ -70,6 +70,11 @@ static void SetupCameraServerShared() {
  * boot so ensure that it runs.
  */
 RobotBase::RobotBase() : m_ds(DriverStation::GetInstance()) {
+  if (!HAL_Initialize(500, 0)) {
+    wpi::errs() << "FATAL ERROR: HAL could not be initialized\n";
+    wpi::errs().flush();
+    std::terminate();
+  }
   m_threadId = std::this_thread::get_id();
 
   RobotState::SetImplementation(DriverStation::GetInstance());