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/Base.h

@@ -0,0 +1,57 @@
+/*----------------------------------------------------------------------------*/
+/* Copyright (c) 2008-2018 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
+
+#if !defined(__clang__) && defined(__GNUC__) && __GNUC__ < 5
+static_assert(0,
+              "GCC must be 5 or greater. If building for the roboRIO, please "
+              "update to the 2018 toolchains.");
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER < 1900
+static_assert(0, "Visual Studio 2015 or greater required.");
+#endif
+
+#define DEFAULT_MOVE_CONSTRUCTOR(ClassName) ClassName(ClassName&&) = default
+
+namespace frc {
+
+// A struct to use as a deleter when a std::shared_ptr must wrap a raw pointer
+// that is being deleted by someone else.
+template <class T>
+struct NullDeleter {
+  void operator()(T*) const noexcept {};
+};
+
+}  // namespace frc
+
+#include <atomic>
+
+namespace frc {
+
+// Use this for determining whether the default move constructor has been
+// called on a containing object. This serves the purpose of allowing us to
+// use the default move constructor of an object for moving all the data around
+// while being able to use this to, for instance, chose not to de-allocate
+// a PWM port in a destructor.
+struct HasBeenMoved {
+  HasBeenMoved(HasBeenMoved&& other) {
+    other.moved = true;
+    moved = false;
+  }
+  HasBeenMoved() = default;
+  std::atomic<bool> moved{false};
+  operator bool() const { return moved; }
+};
+
+}  // namespace frc
+
+// For backwards compatibility
+#ifdef NO_NAMESPACED_WPILIB
+using namespace frc;  // NOLINT
+#endif