Android Vulkan prerotation support

[attilaz]

Here is a guidance for how to implement this.

https://developer.android.com/games/optimize/vulkan-prerotation

Currently vkQueuePresentKHR returns VK_SUBOPTIMAL_KHR.
Bgfx handles this with swapchain buffer recreation. This recreation happens every frame so this
effects performance very badly.

For our test scene the frame was 30-35 fps with prerotation implemented the framerate went up to 60-70 fps.

[attilaz]

A solution could be to use this extension: https://registry.khronos.org/vulkan/specs/latest/man/html/VK_QCOM_render_pass_transform.html
But according to https://vulkan.gpuinfo.org/displayextensiondetail.php?extension=VK_QCOM_render_pass_transform only 29.85% of the devices support this on android.