Adds default methods for Commands (#238) (#238)

Closes #235

wpilibc/shared/include/Commands/InstantCommand.h

@@ -0,0 +1,26 @@
+/*----------------------------------------------------------------------------*/
+/* 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.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+#include <string>
+
+#include "Commands/Command.h"
+
+namespace frc {
+
+class InstantCommand : public Command {
+ public:
+  explicit InstantCommand(const std::string& name);
+  InstantCommand() = default;
+  virtual ~InstantCommand() = default;
+
+ protected:
+  virtual bool IsFinished();
+};
+
+}  // namespace frc