We now always emit internal events for headers.
We now always emit internal events for headers.

python-hyper/hyper-h2,Kriechi/hyper-h2,python-hyper/hyper-h2,vladmunteanu/hyper-h2,Kriechi/hyper-h2,vladmunteanu/hyper-h2,bhavishyagopesh/hyper-h2