Replacing the older version of insertRow with a Schema-independent version.

This new API is still considered Deprecated version due to the assumptions on a single Row insertion
(similar to the deprecated vswitchd specific insertRow API).

There are a lot more changes coming along the way and this is the first installment of the migration changes.

Change-Id: Id29326923c794eb5de5d030cd2beaaeeda01d2c5
Signed-off-by: Madhu Venugopal <mavenugo@gmail.com>