[SQL]Add base row updating methods for JoinedRow

This will be helpful in join operators.

Author: Cheng Hao <hao.cheng@intel.com>

Closes #1187 from chenghao-intel/joinedRow and squashes the following commits:

87c19e3 [Cheng Hao] Add base row set methods for JoinedRow

(cherry picked from commit 133495d82672c3f34d40a6298cc80c31f91faf5c)
Signed-off-by: Michael Armbrust <michael@databricks.com>