Centralize renderer limitations for non-conformant renderers Some renderer configurations (e.g. D3D11 Feature Level 9_3) have some limitations and aren't quite conformant. This change generates errors when applications hit these limitations, and informs developers that they must work around them. BUG=angleproject:1055 Change-Id: I6a4a9e5cc71288ca366a54c769ca0eb82e79a7f7 Reviewed-on: https://chromium-review.googlesource.com/282814 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>