Remove large HAL headers from wpilibc headers (#1386)

Now only includes the types in the wpilib headers.
Should immensely clean up intellisense.

Closes #1383

hal/src/main/native/sim/mockdata/DriverStationData.cpp

@@ -10,6 +10,7 @@
 #include <string>
 
 #include "DriverStationDataInternal.h"
+#include "hal/DriverStation.h"
 
 namespace hal {
 struct JoystickOutputStore {