Mapper: FieldByColumn error message shall contain table name
Mapper: FieldByColumn error message shall contain table name

When FieldByColumn cannot find a column in the orm info, make sure to
report the table name as well.

Signed-off-by: Andreas Karis <cc0a47ed7a3740eaec65f6f21c039e9417e3fc87@gmail.com>

socketplane/libovsdb