RFC: zink: require EXT_image_2d_view_of_3d for texture-views
We can't really do texture-views correctly without
EXT_image_2d_view_of_3d
support, so let's just make it a hard
requirement.
While we're at it, update the docs and the Vulkan profile specification. They both had added this extension as a requirement for OpenGL 4.2, which seems wrong. It's needed for OpenGL 4.3, due to ARB_texture_view.
Also add the missing image2DViewOf3D
feature from the Vulkan profile
specification while we're at it.
Edited by Erik Faye-Lund