libvulkan: Filter layer and extension lists passed to drivers

This change removes the layer and extension lists requested by the app
before passing the instance/device create info to the driver. For
device creation, it adds the VK_ANDROID_native_buffer extension. There
are several new TODOs describing the work left to do here: mostly,
when we properly enumerate instance and device extensions supported by
the driver, we need to use those same lists to filter the extensions
requested by the app.

Change-Id: I27c528d7bbbcb281d1bf6afec2318394831154a0
(cherry picked from commit 258cdce2c0e28b13c887c3d0ad5734a007393368)