Plumbing to send the LOD base level and max level from the Sampler
object in the Context to the Renderer's texture's state.

Change-Id: I5a9571f58a0cbaea8cedfb98da159672673eed94
Reviewed-on: https://swiftshader-review.googlesource.com/5501Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>