alcyon 0.2.0

• Initial CRAN submission.

alcyon 0.3.0

• Fix CMake issues w.r.t macOS (CMake is under /Applications)
• Overhaul the package to use and extend sf and stars S3 classes
• Add agent-analysis vignette

alcyon 0.4.0

• Fix isovist 2-point generation
• Allow one-to-one traversal for pointmaps and segment maps