todo_jan2025

[Alexander-Morin]

• Fix rank standardization at each step
• Fix max ties for single coexpr mat
• Tests reflect these changes
• Help includes dimensions of objects
• Add spearman's
• pc_df rename to gene_df
• Fix drop = FALSE
• Relax/fix check in zero_spare_col
• Sum is na to max rank
• Check namespace/dependency
• Only calc on min detected
• all/col rank should not enforce rownames only of original mat