v1.29.0

This release includes support for (de)serializing Thrift structs directly
to/from IO streams without converting them to the intermediate wire.Value
representation. This method of (de)serialization is significantly faster and
less memory intensive.

Added

• protocol/stream and envelope/stream packages defining the core types
  needed to implement support for streaming serialization.
• protocol: BinaryStreamer that exports the Binary protocol as a
  stream.Protocol.
• protocol/binary: The new Default variable is the default value of
  *binary.Protocol that most users should use. This variable retains the
  struct type so that it can be used for any new interfaces declared in the
  future without another protocol.Binary* export.
• All generated types now include Encode and Decode methods that can
  serialize or deserialize those types using stream.Writer and
  stream.Reader objects.
• ast: All nodes now track the column numbers they're defined on in addition
  to the line numbers.
• ast: Add Annotations(Node) function that reports the annotations for AST
  nodes that record annotations.

Changed

• protocol:
  • Deprecate Binary and EnvelopeAgnosticBinary in favor of
    protocol/binary.Default.
  • Deprecate NoEnvelopeResponder, EnvelopeV0Responder, and
    EnvelopeV1Responder in favor of versions declared in the
    protocol/binary package.

Thanks to @witriew, @dianale31, @usmyth, and @jparise for their contributions
to this release.