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/GearsBot/include/commands/SetDistanceToBox.h

@@ -0,0 +1,44 @@
+/*----------------------------------------------------------------------------*/
+/* 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/PIDController.h>
+#include <frc/PIDOutput.h>
+#include <frc/PIDSource.h>
+#include <frc/commands/Command.h>
+
+/**
+ * Drive until the robot is the given distance away from the box. Uses a local
+ * PID controller to run a simple PID loop that is only enabled while this
+ * command is running. The input is the averaged values of the left and right
+ * encoders.
+ */
+class SetDistanceToBox : public frc::Command {
+ public:
+  explicit SetDistanceToBox(double distance);
+  void Initialize() override;
+  bool IsFinished() override;
+  void End() override;
+
+  class SetDistanceToBoxPIDSource : public frc::PIDSource {
+   public:
+    virtual ~SetDistanceToBoxPIDSource() = default;
+    double PIDGet() override;
+  };
+
+  class SetDistanceToBoxPIDOutput : public frc::PIDOutput {
+   public:
+    virtual ~SetDistanceToBoxPIDOutput() = default;
+    void PIDWrite(double d) override;
+  };
+
+ private:
+  SetDistanceToBoxPIDSource m_source;
+  SetDistanceToBoxPIDOutput m_output;
+  frc::PIDController m_pid{-2, 0, 0, &m_source, &m_output};
+};