ASYML project suggestions

As open-sourced projects, we love to hear the voices of the community and learn what features you are expecting from machine learning libraries and NLP toolkits. To facilitate this, we will maintain a master list of project suggestions of all of our ASYML projects from the communities, which can help future contributors and us to decide what to work on. We will maintain a high-level list in this issue:

- If you have an idea/direction, you can raise it here. Use the [issues](https://github.com/asyml/texar/issues) if you have a concrete feature request or bug report.
- If you are interested in working on any of these directions, you can open issues and comment here with the issue link.

### Texar ([issue list](https://github.com/asyml/texar/issues))

- Tensorflow-2.0 support.

### Texar ([issue list](https://github.com/asyml/texar-pytorch/issues))

- Support distributed training with [AdaptDL](https://github.com/petuum/adaptdl).

### Forte ([issue list](https://github.com/asyml/forte/issues))

- Support Automatic Data Augmentation functions.

### Stave ([issue list](https://github.com/asyml/stave/issues))

- Easy configurable active learning for annotation projects.
- Allow Embed Stave visualization to webpages.

Review the linked Texar, texar-pytorch, Forte, and Stave issue lists and the directions recorded here. Choose one direction and turn it into a concrete issue with a defined scope, affected project, and completion criteria; this issue itself does not identify files, tests, or an implementation entry point.

Written by the indexing model from the issue text.