rxflow remove recursion and simplify

Signed-off-by: Andy Green <andy.green@linaro.org>
cmake add gcc compile options

Signed-off-by: Andy Green <andy.green@linaro.org>
test client have u option also reject deflate stream

Signed-off-by: Andy Green <andy.green@linaro.org>
introduce api for unthrottle all connections of protocol

Signed-off-by: Andy Green <andy.green@linaro.org>