Map<String, Any?>.toDataRow() function?

[Jolanrensen]

DataFrame has the function pair:
Map<String, Iterable<Any?>>.toDataFrame() and AnyFrame.toMap(): Map<String, List<Any?>>

But for DataRow there's just: AnyRow.toMap(): Map<String, Any?>.

Especially in notebooks it might be helpful to be able to convert a simple Map to a DataRow to get generated accessors.
It might also make notations like #710 possible (so to construct a DataFrame from rows instead of from columns, albeit at a performance cost).