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.

wpilibc/src/main/native/cpp/commands/PIDCommand.cpp

@@ -0,0 +1,74 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2011-2018 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.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#include "frc/commands/PIDCommand.h"
+
+#include "frc/smartdashboard/SendableBuilder.h"
+
+using namespace frc;
+
+PIDCommand::PIDCommand(const wpi::Twine& name, double p, double i, double d,
+                       double f, double period)
+    : Command(name) {
+  m_controller = std::make_shared<PIDController>(p, i, d, this, this, period);
+}
+
+PIDCommand::PIDCommand(double p, double i, double d, double f, double period) {
+  m_controller =
+      std::make_shared<PIDController>(p, i, d, f, this, this, period);
+}
+
+PIDCommand::PIDCommand(const wpi::Twine& name, double p, double i, double d)
+    : Command(name) {
+  m_controller = std::make_shared<PIDController>(p, i, d, this, this);
+}
+
+PIDCommand::PIDCommand(const wpi::Twine& name, double p, double i, double d,
+                       double period)
+    : Command(name) {
+  m_controller = std::make_shared<PIDController>(p, i, d, this, this, period);
+}
+
+PIDCommand::PIDCommand(double p, double i, double d) {
+  m_controller = std::make_shared<PIDController>(p, i, d, this, this);
+}
+
+PIDCommand::PIDCommand(double p, double i, double d, double period) {
+  m_controller = std::make_shared<PIDController>(p, i, d, this, this, period);
+}
+
+void PIDCommand::_Initialize() { m_controller->Enable(); }
+
+void PIDCommand::_End() { m_controller->Disable(); }
+
+void PIDCommand::_Interrupted() { _End(); }
+
+void PIDCommand::SetSetpointRelative(double deltaSetpoint) {
+  SetSetpoint(GetSetpoint() + deltaSetpoint);
+}
+
+void PIDCommand::PIDWrite(double output) { UsePIDOutput(output); }
+
+double PIDCommand::PIDGet() { return ReturnPIDInput(); }
+
+std::shared_ptr<PIDController> PIDCommand::GetPIDController() const {
+  return m_controller;
+}
+
+void PIDCommand::SetSetpoint(double setpoint) {
+  m_controller->SetSetpoint(setpoint);
+}
+
+double PIDCommand::GetSetpoint() const { return m_controller->GetSetpoint(); }
+
+double PIDCommand::GetPosition() { return ReturnPIDInput(); }
+
+void PIDCommand::InitSendable(SendableBuilder& builder) {
+  m_controller->InitSendable(builder);
+  Command::InitSendable(builder);
+  builder.SetSmartDashboardType("PIDCommand");
+}