tree fe853178f0e74e9f13287d98023123ae4674054a
parent 402321901f1966542bf638759348223b79e251c7
author Zach Johnson <zachoverflow@google.com> 1582958048 -0800
committer Zach Johnson <zachoverflow@google.com> 1582958310 -0800

Add IEventStream, so other subjects can use emit, etc

And use in PyHci & PyAclManager. Can't quite turn on filtering
on the ACL messages, due to the handles being wrong.

Test: cert/run --host --test_filter=AclManagerTest
Change-Id: I30ef332b06ae553553757337cd66da91f8debe3a