D3D11: Futher optimize input layout cache. *re-land with fix for matrix attributes* *re-re-land with fix for attributes with BindAttribLocation* Using the new vertex format type enum, we can shrink the size of the input layout tables and reduce draw call overhead further. BUG=angleproject:959 Change-Id: I181acd3d7d519f5587cbe180fb1bca8530b7cfc2 Reviewed-on: https://chromium-review.googlesource.com/285348 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>