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/include/frc/commands/WaitCommand.h

@@ -0,0 +1,36 @@
+/*----------------------------------------------------------------------------*/
+/* 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.                                                               */
+/*----------------------------------------------------------------------------*/
+
+#pragma once
+
+#include <wpi/Twine.h>
+
+#include "frc/commands/TimedCommand.h"
+
+namespace frc {
+
+class WaitCommand : public TimedCommand {
+ public:
+  /**
+   * Creates a new WaitCommand with the given name and timeout.
+   *
+   * @param name    the name of the command
+   * @param timeout the time (in seconds) before this command "times out"
+   */
+  explicit WaitCommand(double timeout);
+
+  /**
+   * Creates a new WaitCommand with the given timeout.
+   *
+   * @param timeout the time (in seconds) before this command "times out"
+   */
+  WaitCommand(const wpi::Twine& name, double timeout);
+
+  virtual ~WaitCommand() = default;
+};
+
+}  // namespace frc