Initial PyPI Release

What's Changed

• Arguments by @langmm in #3
• Improvements to testing by @langmm in #4
• Packaging by @langmm in #5

Summary of major features

• Coverage & LAI calculations for simulated canopies
• Virtual canopies for more efficient ray tracigin
• Package maintenance including GHA workflows for publishing docs & Python wheels to PyPI
• Fix to rounding errors in image resolution calculation
• Updates for use with initial release of hothouse
• Updates for use of latest openalea.lpy

Full Changelog: v0.1.0...v0.2.0