Remove old Vulkan "default" Dockerfile (which was never intended to get special treatment).
Add new Vulkan Dockerfile using current versions of the toolchain and
hijacking some of @rpavlik's script to allow setting the user/group at
docker invocation.
Remove old Vulkan "default" Dockerfile (which was never intended to get special treatment).
Add new Vulkan Dockerfile using current versions of the toolchain and hijacking some of @rpavlik's script to allow setting the user/group at docker invocation.