Add socketType to TestListenSocket (#5523)
Add socketType to TestListenSocket (#5523)

Lost the merge race -- a new pure virtual method was added, which we
needed to implement in the test class. This commit does so.

Also changed up a few namespace scopes to be less verbose.

Signed-off-by: Kyle Larose <3c25b01657254677d3e1a8fd1f0742c5d489bd39@agilicus.com>
lizan/envoy,eklitzke/envoy,lizan/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,istio/envoy,dnoe/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,lizan/envoy,envoyproxy/envoy-wasm,envoyproxy/envoy,lyft/envoy,eklitzke/envoy,lizan/envoy,istio/envoy,lizan/envoy,jrajahalme/envoy,istio/envoy,eklitzke/envoy,envoyproxy/envoy-wasm,istio/envoy,envoyproxy/envoy,lyft/envoy,envoyproxy/envoy-wasm,lizan/envoy,jrajahalme/envoy,envoyproxy/envoy-wasm,istio/envoy,eklitzke/envoy,dnoe/envoy,envoyproxy/envoy,istio/envoy,lyft/envoy,envoyproxy/envoy,jrajahalme/envoy,eklitzke/envoy,eklitzke/envoy,dnoe/envoy,lyft/envoy,jrajahalme/envoy,lyft/envoy,envoyproxy/envoy,envoyproxy/envoy,envoyproxy/envoy-wasm,lyft/envoy,jrajahalme/envoy,envoyproxy/envoy,envoyproxy/envoy,istio/envoy,dnoe/envoy,envoyproxy/envoy,dnoe/envoy,envoyproxy/envoy,jrajahalme/envoy