Moves HAL PCM objects to header and HAL namespace (#129)

hal/lib/athena/PCMInternal.cpp

@@ -0,0 +1,18 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2016. 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 "PCMInternal.h"
+
+namespace hal {
+PCM* PCM_modules[NUM_MODULE_NUMBERS] = {nullptr};
+
+void initializePCM(int module) {
+  if (!PCM_modules[module]) {
+    PCM_modules[module] = new PCM(module);
+  }
+}
+}