Vertex input buffers only support VK_FORMAT_A2B10G10R10_UNORM_PACK32. This cl adds all the signed and integer variants of that format. This cl also removes StreamType and replaces it with VkFormat. Tests: dEQP-VK.*r10* Bug: b/142661203 Change-Id: I996705395cbb493c599e1a460a6368a7e00d5a55 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/40348Tested-by: Alexis Hétu <sugoi@google.com> Kokoro-Presubmit: kokoro <noreply+kokoro@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com>
