Add ARD for group comparisons

[ddsjoberg]

• ARD for One-way ANOVA (aov() and oneway.test()) #35
• ARD for Two-way ANOVA #36
• ARD for Mood's Test #37
• ARD for Kruskal-Wallis #38
• ARD for Wilcox #39
• ARD for McNemar's Test #40
• ARD for Repeated measures #41
• ARD for Paired Wilcox #42

https://github.com/ddsjoberg/gtsummary/blob/main/data-raw/gtsummary_tests.csv

If we need to add an additional package dependency, add it to Suggests, use the cards function to check whether it's installed, and be sure to add a minimum version that is at least the version required in gtsummary.