Results 2 issues of Tam Tran

**Motivations:** - Enable the ability to pass CookieStore at request level -> cookies between different requests having the same URI will be independent and will not override each other. -...

Hi, I am using AsyncHttpClient version 2.5.2 for my application. I notice that CookieStore will add the cookie when HttpResponse come https://github.com/AsyncHttpClient/async-http-client/blob/master/client/src/main/java/org/asynchttpclient/netty/handler/intercept/Interceptors.java#L73-L82 and use cookie from CookieStore for redirect https://github.com/AsyncHttpClient/async-http-client/blob/master/client/src/main/java/org/asynchttpclient/netty/handler/intercept/Redirect30xInterceptor.java#L129-L136...

Enhancement
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