Adding Polaris consumer and Polaris zip consumer

[elaubsch]

The Polaris consumer performs spot detection (see deepcell_spots.applications.SpotDetection). There are several files that are changed to add the new job:

• prometheus-redis-exporter adds the job queue to be exported to Prometheus.
• The QUEUES environment variable has been updated in the autoscaler, redis-janitor, and frontend.
• Custom Prometheus metrics have been added to the prometheus-operator (polaris_consumer_key_ratio and polaris_zip_consumer_key_ratio)
• This PR adds the new consumer along with its complementary zip-consumer
• Bumps kiosk-redis-consumer to 0.14.0 and kiosk-frontend to 0.9.0

[msschwartz21]

I cut new releases for the frontend and consumer this morning. Please update the docker version tags for the frontend helmfile and all of the consumer helmfiles. After that, I think the last thing we need to do is figure out the correct pattern for which branches to merge into.