0.2.0

Features

• Greater coverage of the H3 API (cell_area, k_ring, hex_ring, polyfill)
• Initial and experimental implementations of k_ring_smoothing and polyfill_resample
• More consistent API (parameters explode, return_geometry behave the same for all methods that offer them)
• Example notebook showing the new methods

General improvements

• "aggregate" functions "rebranded" to "H3-Pandas Extended API"
• Use versioneer
• black, flake8 + pre-commit
• Only use Conda for environments
• More details in docstrings (see also, examples)