Version 0.1 beta

This version

• adds tests, type annotations and docstrings to the code
• adds pre-commit hooks for testing, linting, type checking and doc generation
• configures the project for PyPi
• adds developer documentation

Version 0.1 alpha

Defines functionality for the 0.1 release:

• stacks implemented with dynamic arrays and singly-linked lists
• queues implemented with singly-linked lists
• deques implemented with doubly-linked lists