Stumpy

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* bugfixes
- Fixed bad chunking in `compute_mean_std`
* features
- Added parallelized `scrump`
- Added NaN/inf support to `scrump`
- Added `prescrump` (and, consequently, scrump++)
- Added AB-join to `scrump`
- Added unit test for `scrump`
- Added constrained inclusion motif search for `mstump`/`mstumped`
- Added discord support for `mstump`/`mstumped`
- Changed sorting to pure numpy in `mstump`/`mstumped` for better performance
- Added NaN/inf support to `gpu_stump`
- Added new `core.preprocess` function
- Added NaN/inf support to `core.mass`
- Added `core.apply_exclusion_zone` for consistent exclusion zone across functions
- Added `stumpi` for incrementally updating matrix profiles with streaming data
- Added `stumpi` unit tests
- Added NaN/inf support for `stumpi`
- Converted `floss.floss` generator to `class`
* tasks
- Added Python 3.8 to Azure Pipelines for unit testing
- Moved `stomp` to `_stomp` to prevent public usage
- Fixed numerous typos
- Added several `np.asarray` calls to input arrays
- Split some unit tests out into separate files
- Updated distributed teststo use context manager
- Refactored `_calculate_squared_distance`
- Added `core.py` to JIT-compiled unit test section
- Remove mypy config file
- Corrected cuda.jit signature for `gpu_stump`
- Shortened time series length for faster GPU tests
- Removed link to discourse from documentation
- Added global variables for controlling chunking in `compute_mean_std`
- Replaced name of `naive_mass` with `naive_stamp`
- Removed redundant "caption" in RTD ToC
- Renamed `stamp.mass` to private `stamp._mass_PI`
- Added flake8-docstrings checking
- Renamed `utils.py` to `naive.py` and updated corresponding function calls
- Added `stumpi` and `scrump` to STUMPY API (RTD)
* documentation
- Initialized shapelet discovery tutorial (WIP)
- Updated `check_window_size` docstring
- Added `gpu_stump` to tutorial
- Added `scrump` tutorial for Fast Approximate Matrix Profiles
- Updated string formatting to conform to flake8
- Added `stumpi` tutorial
- Improved `mstump` tutorial (WIP)
- Added additional references to original matrix profile papers

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* bugfixes
- Fixed MSTUMP/MSTUMPED input dimensions check
- Fixed inconsistent MSTUMP/MSTUMPED output
* features
- Added support for constant subsequences and added unit tests
- Improved GPU memory consumption for self-join
- Added ability to handle NaN and inf values in all matrix profile algorithms (except gpu_stump)
* tasks
- Updated performance table with new performance results, better color scheme, intuitive hardware grouping
- Re-organized ndarray input verification steps
- Added more unit tests and rearranged test order
- Removed Python type hints or type annotations
- Split failing dask unit tests into multiple test files
- Added PR template
- Updated Mac OS X image for Azure Pipelines
- Replaced stddev computation with a memory efficient rolling chunked stddev
- Modified exclusion zone to be symmetrical
- Refactored multi-dimensional mass
- Fixed scenarios where subsequence contains zero mean
- Added explicit PR trigger to Azure Pipelines
- Updated installation instructions to use conda-forge channel
- Fixed time series chains all_c test to handle differences in Python set order
* documentation
- Fixed various typos
- Refactored tutorials for clarity

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* bugfixes
- Fixed MSTUMP/MSTUMPED input dimensions check
- Fixed inconsistent MSTUMP/MSTUMPED output
* features
- Added parallel GPU-STUMP (i.e., multi-GPU support) using Python multiprocessing and file I/O
- Added Python type hints/type annotations
* tasks
- Updated performance table and plots with STUMPY.2, GPU-STUMP.1, GPU-STUMP.2, GPU-STUMP.DGX1, and GPU-STUMP.DGX2 results
- Fixed test function names
- Added Python script for easier performance timing conversion
* documentation
- Added window size (m = 50) for performance calculations
- Fixed various typos
- Added missing and improved docstrings
- Replaced Bokeh with Matplotlib
- Updated GPU-STUMP example with multi-GPU support

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* features
- Added ability to select GPU device in gpu_stump
* tasks
- Changed all README hyperlinks to double underscores
- Added API links to README
- Added STUMPY circle image (logo)
- Suppressed pytest junit_family deprecation warning
- Replaced `python install` with `python -m pip install .`

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* bugfixes
- Fixed incorrect GPU output for self joins
* features
- Added array check for NaNs
- Improved test script for CI
* tasks
- Added discourse group at stumpy.discourse.group
- Updated formatting and added newline before logo
- Made logo a hyperlink to Github repo
- Added custom CSS to sphinx theme

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* bugfixes
- Fixed Python AST utf8 file reading bug on Windows