Add support to log gearman client to filter on build-queue

This commit adds a new job filter to the gearman client to filter
based on the build queue. This is used for the subunit jobs which
we don't want to run on check jobs.

Change-Id: If81fe98d8d67bb718c53a963695a7d06f5f6625d
Merge "Add support to log gearman client to filter on build-queue"