vulkan: Add skeleton swapchain support

Loader and driver entry points exist and the call chains are hooked up
properly, but functions are just empty stubs for now.

Change-Id: I6ff95e47d1d09ebed41eda8accb71686c8249546
(cherry picked from commit 038c8a740bbda4650bec776023a26a7fcbf93864)
13 files changed