test-server-extpoll: add 1-per-second timeout servicing
test-server-extpoll: add 1-per-second timeout servicing

Signed-off-by: Denis Osvald <e00731e7c3a13144c708ef6111353042fb69a38e@sartura.hr>

sartura/libwebsockets,sartura/libwebsockets,sartura/libwebsockets,sartura/libwebsockets,sartura/libwebsockets,sartura/libwebsockets,sartura/libwebsockets