dependency compatibilities

This patch resolves some compatibility issues with dependency packages:

• List tidiers, which redefine methods from {broom}, previously caused a confusing warning on attachment. They have been relocated to the prototype standalone package {broom.list}.
• The output of eigen() now has an 'eigen' S3 class. Recovery methods are added for this class, though the embellished wrapper eigen_ord() and its methods remain.
• The linewidth aesthetic replaces size (with fallback behavior per recommendations) following the upcoming change in {ggplot2}.

See 'NEWS.md' for more detail.

first CRAN release

This is the first CRAN release, and will be preserved in the cran branch until superseded.

CRAN preparation

This pre-release improves documentation, reduces dependencies, and adds secondary functionality to simplify common operations.

v0.0.1

This is a pre-release in anticipation of a first CRAN submission. Upgrades between this pre-release and CRAN submission will focus on addressing issues.