dashpipe 0.0.3

Core library to power dashpipe stream processing
Documentation
# dashpipe core PR

_<High level description of the PR>_

### Added
* _<detail item of what was added>_
* _<describe functionality added>_

### Changed
* _<detail item of what was changed>_
* _<describe functionality that was changed>
* _<in particular, describe BACKWARD INCOMPATIBLE changes>

### Deleted
* _<detail item of what was removed>_


# PR Checklist Forms

- [ ] CHANGELOG.md updated
- [ ] Reviewer assigned
- [ ] PR assigned (presumably to submitter)
- [ ] Labels added (enhancement, bug, documentation)