If the Vulkan backend supports VK_EXT_swapchain_colorspace extension,
enable the option for applications to create surfaces with non-linear
formats. Not all formats have non-linear versions and is platform
specific.

Tests: dEQP-EGL.functional.wide_color.*
       angle_deqp_egl_tests --use-angle=vulkan --deqp-gl-context-type=egl --deqp-case=dEQP-EGL.functional.wide_color.*
Bug: angleproject:2514
Change-Id: I441ee797cceef92c84473bfa18605c4fd8180de1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1951963
Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Cody Northrop <cnorthrop@google.com>