DataFrame: Ctor from non abc.Iterable 2-d array like
In case we pass a 2d array like that do not use __iter__ but the
__getitem__ interface, it falls outside the collection.abc.Iterable case
and throw.

- [ ] closes #xxxx
- [x] tests added / passed
- [x] passes `black pandas`
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry
