Client: go
Implement THeaderTransport and THeaderProtocol, with support of:
* clients:
- headers
- framedBinary
- unframedBinary
- framedCompact
- unframedCompact
* transforms:
- none
- zlib
* info types:
- key_value
* wrapped protocols:
- TBinary
- TCompact
The support list is in general on par of the THeader implementation in
the python library.
The cross-test passes, except ones related to cpp/nodejs http transport,
which were also failing for non-theader protocols.
This change also fixes two bugs:
1. A small issue in test/go/src/bin/testserver/main.go
2. A bug in TFrameTransport go implementation