Replaced DrawType by VkPrimitiveTopology and VkIndexType.

Bug b/118386749

Change-Id: I6cd9a263b823e32c19ab85df7978cd674a757f1f
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/22848Tested-by: Alexis Hétu <sugoi@google.com>
Presubmit-Ready: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>