Added ahal

This is a formatted copy of WPILib's default user-visible C++ API, with
a bit of completely unnecessary functionality stripped out. Most of the
stripping so far is only related to weird threading decisions.

Change-Id: Icbfd949b48cd115561862cb909bcc572aba0e753
diff --git a/frc971/wpilib/ahal/PowerDistributionPanel.h b/frc971/wpilib/ahal/PowerDistributionPanel.h
new file mode 100644
index 0000000..fcb14ed
--- /dev/null
+++ b/frc971/wpilib/ahal/PowerDistributionPanel.h
@@ -0,0 +1,39 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2014-2017. 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.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+#include <memory>
+#include <string>
+
+#include "frc971/wpilib/ahal/SensorBase.h"
+
+namespace frc {
+
+/**
+ * Class for getting voltage, current, temperature, power and energy from the
+ * CAN PDP.
+ */
+class PowerDistributionPanel {
+ public:
+  PowerDistributionPanel();
+  explicit PowerDistributionPanel(int module);
+
+  double GetVoltage() const;
+  double GetTemperature() const;
+  double GetCurrent(int channel) const;
+  double GetTotalCurrent() const;
+  double GetTotalPower() const;
+  double GetTotalEnergy() const;
+  void ResetTotalEnergy();
+  void ClearStickyFaults();
+
+ private:
+  int m_module;
+};
+
+}  // namespace frc