Move CameraServer and WPILib headers into their own folder

The old headers were moved into folders because doing so avoids polluting
the system include directories.

Folder names were also normalized to lowercase.

wpilibcExamples/src/main/cpp/examples/PacGoat/include/subsystems/Pivot.h

@@ -0,0 +1,74 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2017-2018 FIRST. 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 <frc/AnalogPotentiometer.h>
+#include <frc/DigitalInput.h>
+#include <frc/Spark.h>
+#include <frc/commands/PIDSubsystem.h>
+
+/**
+ * The Pivot subsystem contains the Van-door motor and the pot for PID control
+ * of angle of the pivot and claw.
+ */
+class Pivot : public frc::PIDSubsystem {
+ public:
+  // Constants for some useful angles
+  static constexpr double kCollect = 105;
+  static constexpr double kLowGoal = 90;
+  static constexpr double kShoot = 45;
+  static constexpr double kShootNear = 30;
+
+  Pivot();
+
+  /**
+   *  No default command, if PID is enabled, the current setpoint will be
+   * maintained.
+   */
+  void InitDefaultCommand() override {}
+
+  /**
+   * @return The angle read in by the potentiometer
+   */
+  double ReturnPIDInput() override;
+
+  /**
+   * Set the motor speed based off of the PID output
+   */
+  void UsePIDOutput(double output) override;
+
+  /**
+   * @return If the pivot is at its upper limit.
+   */
+  bool IsAtUpperLimit();
+
+  /**
+   * @return If the pivot is at its lower limit.
+   */
+  bool IsAtLowerLimit();
+
+  /**
+   * @return The current angle of the pivot.
+   */
+  double GetAngle();
+
+ private:
+  // Subsystem devices
+
+  // Sensors for measuring the position of the pivot
+  frc::DigitalInput m_upperLimitSwitch{13};
+  frc::DigitalInput m_lowerLimitSwitch{12};
+
+  /* 0 degrees is vertical facing up.
+   * Angle increases the more forward the pivot goes.
+   */
+  frc::AnalogPotentiometer m_pot{1};
+
+  // Motor to move the pivot
+  frc::Spark m_motor{5};
+};