[redis] add a simple redis broker

Also, worker tests implemented for redis
3 jobs for polymorphic-worker in 14 minutes and 40 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #14068
build

00:07:08

 
  Unit Tests
passed #14069
unit-tests

00:03:34

 
  Integration Tests
passed #14070
integration-tests

00:03:57