Enable string columns for non-string fields

Summary:
Depends on D12995

Ref T9270

Fixed #issue-70 related to get_json_object functionality for string in hive serde
(cherry picked from commit f642841d3b832f6f860074f549ea0654eab3710b)

Fixed formatting changes
(cherry picked from commit e091e3d8c867b54f079d6d620e6cdaa0558294d3)

Removed logging
(cherry picked from commit 4cbc61483b6ffb79b0fafb869a98669e89271965)

Test Plan: seems to work

Reviewers: jeff, JamesGreenhill

Reviewed By: JamesGreenhill

Projects: #data

Maniphest Tasks: T9270

Differential Revision: http://phabricator.local.disqus.net/D13059