Removes statics from hal sim (#825)

Based off of #824, the equivelent in sim.

wpilibc/src/test/native/cpp/main.cpp

@@ -5,9 +5,12 @@
 /* the project.                                                               */
 /*----------------------------------------------------------------------------*/
 
+#include <HAL/HAL.h>
+
 #include "gtest/gtest.h"
 
 int main(int argc, char** argv) {
+  HAL_Initialize(500, 0);
   ::testing::InitGoogleTest(&argc, argv);
   int ret = RUN_ALL_TESTS();
   return ret;