Mabwiser

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minor:
- bug fix in ucb

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minor:
- Simulator performs parallel distance calculations
- Bug fix with plotting functionality
- Chunk size in Simulator dependent on number of jobs

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minor:
- Simulator save results with a prefix

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major:
- New Feature: Simulation utility
- Utility supports both online and offline simulations with historic data sets
- Nearest neighbors simulations share distance calculations and track size, descriptive statistics

minor:
- Parallelization bug fix

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minor:
- Additional unit tests to improve code coverage
- Unit test data changes to remove warnings
- Logic fix for Softmax edge case
- Improvements to MAB handling of series data
- LinUCB with scaler array type conversion

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major:
- New Feature: Built-in parallelization for both training and testing components
- BaseMAB automates the parallelization of each policy
- Policies to be added in the future can take advantage of built-in parallization as well
- Allow initialization with standard scaler for _Linear class constructor

minor:
- binarization bug fix
- parallelization tests

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