adds an example using UI for something more related to a game than the current UI examples.
Example with a game menu:
* new game - will display settings for 5 seconds before returning to menu
* preferences - can modify the settings, with two sub menus
* quit - will quit the game
I wanted a more complex UI example before starting the UI rewrite to have ground for comparison
Co-authored-by: François <8672791+mockersf@users.noreply.github.com>
Extend the Texture asset type to support 3D data
Textures are still loaded from images as 2D, but they can be reshaped
according to how the render pipeline would like to use them.
Also add an example of how this can be used with the texture2DArray uniform type.
