CAME-7902 Added test for new ClosePullRequestProducer
CAMEL-7909 camel-netty-http consumer need to close the connection if the response connection header is close
CAMEL-7910 Netty {Client|Server}ChannelHandler need to pass the close and open event around
CAMEL-7909 Merged the patch into camel-netty4-http module
Removed the fork per test setting of camel-netty4 and camel-netty4-http
CAME-7902 Fixed the CS error of ClosePullRequestProducerTest