THRIFT-922. cpp: Convert transport classes to use non-virtual calls

Update the thrift transport classes to use non-virtual calls for most
functions.  The correct implementation is determined at compile time via
templates now.  Only the base TTransport class falls back to using
virtual function calls.

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@1005134 13f79535-47bb-0310-9956-ffa450edef68
12 files changed