Added QoS Controller test.
Added QoS Controller test.

Added new QoS Controller test which use the TestQoSController to fill
the correction queue and verify the slave receiving corrections.

Review: https://reviews.apache.org/r/34633

verizonlabs/mesos,verizonlabs/mesos,verizonlabs/mesos,zmalik/mesos,craimbert/mesos,dforsyth/mesos,verizonlabs/mesos,zmalik/mesos,andschwa/mesos,andschwa/mesos,Gilbert88/mesos,craimbert/mesos,Gilbert88/mesos,chhsia0/mesos,reneploetz/mesos,craimbert/mesos,Gilbert88/mesos,asamerh4/mesos,jpeach/mesos,reneploetz/mesos,zmalik/mesos,chhsia0/mesos,abudnik/mesos,yuquanshan/customizedMesos,kaysoky/mesos,chhsia0/mesos,yuquanshan/customizedMesos,verizonlabs/mesos,kaysoky/mesos,Aman-Jain-14/customizedMesos,neilconway/mesos,Gilbert88/mesos,gsantovena/mesos,reneploetz/mesos,Gilbert88/mesos,jpeach/mesos,andschwa/mesos,reneploetz/mesos,yuquanshan/customizedMesos,craimbert/mesos,jpeach/mesos,andschwa/mesos,jpeach/mesos,gsantovena/mesos,kaysoky/mesos,zmalik/mesos,craimbert/mesos,neilconway/mesos,chhsia0/mesos,abudnik/mesos,reneploetz/mesos,abudnik/mesos,Aman-Jain-14/customizedMesos,yuquanshan/customizedMesos,neilconway/mesos,neilconway/mesos,kaysoky/mesos,verizonlabs/mesos,yuquanshan/customizedMesos,yuquanshan/customizedMesos,asamerh4/mesos,zmalik/mesos,dforsyth/mesos,kaysoky/mesos,zmalik/mesos,Aman-Jain-14/customizedMesos,neilconway/mesos,andschwa/mesos,yuquanshan/customizedMesos,andschwa/mesos,gsantovena/mesos,craimbert/mesos,dforsyth/mesos,asamerh4/mesos,dforsyth/mesos,kaysoky/mesos,neilconway/mesos,Gilbert88/mesos,chhsia0/mesos,verizonlabs/mesos,abudnik/mesos,zmalik/mesos,dforsyth/mesos,Aman-Jain-14/customizedMesos,asamerh4/mesos,gsantovena/mesos,Aman-Jain-14/customizedMesos,gsantovena/mesos,jpeach/mesos,asamerh4/mesos,Aman-Jain-14/customizedMesos,dforsyth/mesos,reneploetz/mesos,Aman-Jain-14/customizedMesos,kaysoky/mesos,reneploetz/mesos,Gilbert88/mesos,dforsyth/mesos,craimbert/mesos,abudnik/mesos,chhsia0/mesos,abudnik/mesos,jpeach/mesos,jpeach/mesos,gsantovena/mesos,andschwa/mesos,gsantovena/mesos,asamerh4/mesos,asamerh4/mesos,chhsia0/mesos,abudnik/mesos,neilconway/mesos