read_json support for orient="table"
- [X] closes #18912 and 
closes #9146
- [X] tests added / passed
- [X] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [x] whatsnew entry

This is a starting point for ``read_json`` supporting ``orient='table'`` for basic types. I'm explicitly raising in the instances that don't work, namely timezone aware datetimes and``Timedelta``. I marked floats with no decimal values as an xfail (these are being converted to ``int64`` by the ``_try_convert_data`` method). 

``Timedelta`` would be best fixed in a separate change providing a constructor equivalent to the ``isoformat`` method (see #19040).

The new tests could also all be parametrized, but I've kept as is before going too far with this change in case of feedback
  
  
  