[examples] Fix C robot template not correctly looping (#5474)

- The event wouldn't reset, causing infinite looping
- Refresh ds data was missing

wpilibcExamples/src/main/cpp/examples/HAL/c/Robot.c

@@ -87,7 +87,7 @@ int main(void) {
     return 1;
   }
 
-  WPI_EventHandle eventHandle = WPI_CreateEvent(1, 0);
+  WPI_EventHandle eventHandle = WPI_CreateEvent(0, 0);
   HAL_ProvideNewDataEventHandle(eventHandle);
 
   while (1) {
@@ -99,6 +99,8 @@ int main(void) {
       continue;
     }
 
+    HAL_RefreshDSData();
+
     enum DriverStationMode dsMode = getDSMode();
     switch (dsMode) {
       case DisabledMode: