Add glfwInitHint

This allows setting hints that control how the library is initialized,
transforming more compile-time options into run-time ones.

docs/compile.dox

@@ -219,17 +219,6 @@ __GLFW_VULKAN_STATIC__ determines whether to use the Vulkan loader linked
 statically into the application.
 
 
-@subsubsection compile_options_osx macOS specific CMake options
-
-@anchor GLFW_USE_CHDIR
-__GLFW_USE_CHDIR__ determines whether @ref glfwInit changes the current
-directory of bundled applications to the `Contents/Resources` directory.
-
-@anchor GLFW_USE_MENUBAR
-__GLFW_USE_MENUBAR__ determines whether the first call to @ref glfwCreateWindow
-sets up a minimal menu bar.
-
-
 @subsubsection compile_options_win32 Windows specific CMake options
 
 @anchor USE_MSVC_RUNTIME_LIBRARY_DLL
@@ -281,14 +270,6 @@ For the EGL context creation API, the following options are available:
  - @b _GLFW_USE_EGLPLATFORM_H to use `EGL/eglplatform.h` for native handle
    definitions (fallback)
 
-If you are using the Cocoa window creation API, the following options are
-available:
-
- - @b _GLFW_USE_CHDIR to `chdir` to the `Resources` subdirectory of the
-   application bundle during @ref glfwInit (recommended)
- - @b _GLFW_USE_MENUBAR to create and populate the menu bar when the first window
-   is created (recommended)
-
 @note None of the @ref build_macros may be defined during the compilation of
 GLFW.  If you define any of these in your build files, make sure they are not
 applied to the GLFW sources.