Bug#823554: vulkan: should break/replace upstream-provided packages

[Logan Rosen <logan@ubuntu.com>]

Source: vulkan
Version: 1.0.8.0+dfsg1-1
Severity: normal

Dear Maintainer,

As evidenced by a bug report in Ubuntu [1], the vulkan packages in Debian
conflict with at least one upstream-provided Vulkan SDK package.
Specifically, I was able to find this documentation [2] that lists three
upstream packages:
- vulkan-sdk-runtime
- vulkan-sdk-headers
- vulkan-loader

There should probably be a breaks/replaces relationship against some/all of
these packages to ensure that users aren't trying to install the Debian
packages over the upstream ones (and causing file conflicts).

I'm guessing that at least:
- libvulkan1 should break/replace vulkan-sdk-runtime
- libvulkan-dev should break/replace vulkan-sdk-headers

But I haven't done investigation into the files in each package to see which
conflict.

Thanks,
Logan

[1] https://bugs.launchpad.net/ubuntu/+source/vulkan/+bug/1572114
[2] http://support.amd.com/en-us/kb-articles/Pages/Install-LunarG-Vulkan-SDK.aspx

-- System Information:
Debian Release: stretch/sid
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