Add quota controller metrics

[deads2k]

Adds metrics to the clusterquota controller so we can see what's running slow in the HA env.

@liggitt can you help me with magic incantation to get a dev ami?

[liggitt]

building in https://ci.openshift.redhat.com/jenkins/job/fork_ami/273/parameters/

[deads2k]

[test]

[deads2k]

re[test]

[deads2k]

@danmcp @stevekuznetsov forkami ran out of memory: https://ci.openshift.redhat.com/jenkins/job/fork_ami/273/parameters/

FAIL    github.com/openshift/origin/pkg/cmd/server/kubernetes [build failed]
# testmain
/usr/lib/golang/pkg/tool/linux_amd64/link: running gcc failed: fork/exec /bin/gcc: cannot allocate memory

[danmcp]

@deads2k bumped instance size and setup ram disk since it hadn't been added there yet: https://ci.openshift.redhat.com/jenkins/job/fork_ami/274/

[openshift-bot]

Evaluated for origin test up to 3e83a4c

[openshift-bot]

continuous-integration/openshift-jenkins/test SUCCESS (https://ci.openshift.redhat.com/jenkins/job/test_pr_origin/7721/)

[deads2k]

https://ci.openshift.redhat.com/jenkins/job/fork_ami/276/ is going to be the one, I can feel it!

[deads2k]

upstream is going in. [merge]

[derekwaynecarr]

LGTM

[openshift-bot]

continuous-integration/openshift-jenkins/merge SUCCESS (https://ci.openshift.redhat.com/jenkins/job/test_pr_origin/7721/) (Image: devenv-rhel7_4801)

[openshift-bot]

Evaluated for origin merge up to 3e83a4c

[deads2k]

@stevekuznetsov all my ami builds have failed on this: https://ci.openshift.redhat.com/jenkins/job/fork_ami/276/consoleFull#-81879505056be39f6e4b05b79524e57bd