Struct2Tensor 0.26.0

Major Features and Improvements

• Created a docker image that contains a TF model server with struct2tensor
  ops linked. This docker image is available at
  gcr.io/tfx-oss-public/s2t_tf_serving .
• Add support for string_views for intermediate serialized protos. To use, set
  the option "use_string_view" in CalculateOptions to true. string_views are
  potentially more memory bandwidth efficient depending on the depth and
  complexity of the input proto.

Bug Fixes and Other Changes

• Depends on tensorflow-metadata>=0.26,<0.27.

Breaking changes

• N/A

Deprecations

• N/A