vulkan/overlay: keep allocating draw data until it can be reused

The original implementation assumed that we could allocate the same
amount of command buffers as the number of images in the swapchain.
But the application could potentially render much faster and rerender
into images that have been submitted for presentation but not yet
presented.

This change keeps on allocating command buffers, vertex buffer, vertex
indices as well as a semaphore and a fence for as long as we can't
reuse a previously submitted one.

This fixes rendering issues in the overlay at high frame rates.

v2: Don't recreate semaphores constantly (Józef)

v3: Drop useless surface & FreeCommandBuffers (Józef)

Signed-off-by: Lionel Landwerlin <[email protected]>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110655
Cc: 19.1 <[email protected]>
Reviewed-by: Józef Kucia <[email protected]>

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