API: numeric_only consistency

[rhshadrach]

Tracking issue for API consistency between all the different ops that have a numeric_only argument. This includes the dtype of the return when object types are present. I plan to report on the current state after the issues listed below are closed and prior to the 1.5 release.

• ENH: Add numeric_only to groupby frame ops #46524
• DEPR: DataFrameGroupBy numeric_only defaulting to True #46072
• DEPR: numeric_only default on DataFrame ops #46852
• ENH: resample.sum documents a numeric_only argument #46442
• DEPR: numeric_only default in resampler ops #47177
• ENH: Add numeric_only to window ops #47265
• API: numeric_only in Series ops behavior #47500
• Investigate axis=1 interaction with numeric_only (ref: API: numeric_only in Series ops behavior #47500 (comment))
• BUG: Correct numeric_only default for resample var and std #47749

[jreback]

@rhshadrach if you can update #30228 to account for these (there are a couple but not all)