* Allow simultaneous X11 and Wayland support
* Add NativeWindowHandleType
* Set default value for g_platformData.type
* Use g_platformData.type to check for a native Wayland window
* Stub getNativeWindowHandleType on platform where Wayland is not an option
* Implement getNativeWindowHandleType for GLFW
* Add getNativeWindowHandleType to the remaining C++ examples
* Add getNativeWindowHandleType to the C example
Because example 42 was using the shaders from example 07 (callback), which have
input vertex attributes position and color, while the mesh from example 42 has
attributes position and normal, this causes problems on Windows when using
AMD gpus (no bunny mesh would appear on the window).
