Summary:
Make the behavior of reading a closed socket to be consistent
after switching wisp.

Test Plan: Wisp2SocketCloseExceptionTest

Reviewed-by: joeyleeeeeee97 shiyuexw

Issue: alibaba/dragonwell8#124

Summary:
Refactoring WispSocket's InputStream and OutputStream
creating code for readability.

Test Plan: all wisp tests

Reviewed-by: joeyleeeeeee97 shiyuexw

Issue: alibaba/dragonwell8#124

Summary: Add JDK code of the Wisp implementation

Test Plan: all Wisp tests

Reviewed-by: yuleil, shiyuexw, sanhong

Issue: https://github.com/alibaba/dragonwell8/issues/113