We don't have to actually do anything for either of these as all the
features introduced are gated by capabilities which we don't have to
support. We must accept the OpExtension though.

Bug: b/130937460
Change-Id: Iea869e32f165c4a2457f89fcf953fc08f1e346b1
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/31128Tested-by: Chris Forbes <chrisforbes@google.com>
Presubmit-Ready: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>