Added new functions to explicitly mark some
new extension features as not supported.

Fixes the following test:
dEQP-VK.api.info.get_physical_device_properties2.features

Bug: b/144945388
Change-Id: Id4c5da51d42537f5e1d92352eece67d4e7f5b930
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/38531
Presubmit-Ready: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>