ENH: `multirow` naive implementation `Styler.to_latex` part1
this is also for compatability with `DataFrame.to_latex`. #41649 

I think its a nice feature though, although opinions on the argument input choice are welcome. Maybe `"none"` is better than `"naive"`.

When implementing this for multicol there will be the option for left or right alignment, so the likes of `"naive-left"` or `"naive-r"` will be used. see #43382 
