hydromeso 0.1.0

• Initial package release.
• Replaced synthetic raster examples with a compact sample derived from the Cordero-Harris HEC-RAS depth and velocity data for the Big Blue-Kansas Rivers confluence.
• Added the exact eight-class Cordero-Harris default scheme and validated custom rectangular schemes.
• Added classification for numeric, tabular, vector, raster, and scenario inputs.
• Added summaries, scenario comparison, plotting, unit conversion, and GIS/table export.