[Hbase] Add column for source filter in _get_meter_samples

Earlier column for source was not created and "get_samples"
method with source query worked incorrect. In this change
it is fixed.

Fixes: bug #1330989

Change-Id: Ie8be408d6b54471322e2f585ddf27c50219b8fd3
Merge "[Hbase] Add column for source filter in _get_meter_samples"