Stumpy

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* bugfixes
- Fixed transposed Pandas DataFrame issue 66
* features
- Added GPU support (NVIDIA Only)
* tasks
- Added CHANGELOG
- Added GPU tests for GPU-STUMP
- Added CPU tests (via CUDA simulator) for GPU-STUMP
- Added additional STUMPY logos
- Disabled bidirectional and left indices for FLOSS
- Added STUMPY to Python 3 Statement
* documentation
- Added reference to semantic segmentation
- Added gpu_stump API to RTF
- Added gpu_stump example to README
- Improved docstring for mstump(ed)
- Improved time series chains tutorial
- Added FLUSS to README
- Added missing docstring for FLOSS
- Added FLOSS and FLUSS to RTD API
- Updated docstring DOIs with URLs to primary references
- Added motif discovery to exisiting tutorial

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* bugfixes
- Removed incorrect compatibility with Py35
- Split Numba JIT tests tests to ensure proper Dask PyTest teardown
* features
- Added FLUSS and FLOSS
- Added Pandas Series/DataFrame support
* tasks
- Added conda-forge support
- Set up CI with Azure Pipelines
- Added black and flake8 checks
- 100% test coverage
- Added badges
- Added __version__ attr
- Added performance graph
- Published in JOSS
- Added STUMPY logo suite
- Added CHANGELOG
* documentation
- Added RTD documentation
- Added Tutorials
- Added Binder support
- Added NABDConf presentation

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* Initial release