Add live parameter to query

The tests we currently have assume, that all the data required for
running the query is available - once we add live data, this will no
longer be the case.

This patch adds boolean parameter to query function, which tells it
whether to ignore live parameters gathering.

Signed-off-by: Agata Murawska <agatamurawska@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>