swapchain: Implement VK_GOOGLE_surfaceless_query

This extension allows ANGLE to call Vulkan WSI queries before it has a
VkSurfaceKHR.

This version tries to address some subtle differences between upstream
and downstream branches.

Bug: 203826952
Test: Test with ANGLE EGLConfig-generation code
Change-Id: I7eb013efbaa5dd19ebed045583616238cea57023