[Feature Request] Add name attribute to pd.DataFrame

[jolespin]

Code Sample, a copy-pastable example if possible

# Your code here
pd.DataFrame(data, index=sample_labels, columns=iris_features, name="iris")

Please let me know if this is out of scope. I think it could be a useful feature to have since pd.Index, pd.Series, xr.DataArrays, and xr.Dataset has them. I usually deal with dataframes from 2 different populations where I keep them organized by dictionaries. I know that I could still do df.name = "iris" but I think an official name argument would benefit people too.

[jreback]

see discussions here #447

this would add quite some complexity for not a lot of gain