Rename some stuff so its meaning is more clear
Rename some stuff so its meaning is more clear

work -> subscription
bridge -> subscriptionManager
doWork -> subscriptionConsumer
vrischmann/sarama,Neuw84/sarama,uovobw/sarama,crast/sarama,pronix/sarama,Shopify/sarama,cep21/sarama,scalingdata/sarama,scalingdata/sarama,kraveio/sarama,DataDog/sarama,LastManStanding/sarama,winlinvip/sarama,jimmykuo/sarama,vrischmann/sarama,crast/sarama,remerge/sarama,uovobw/sarama,kmiku7/sarama,winlinvip/sarama,cep21/sarama,rafrombrc/sarama,betable/sarama,HelixEducation/sarama,raisemarketplace/sarama,jepst/sarama,HelixEducation/sarama,kmiku7/sarama,aybabtme/sarama,mailgun/sarama,mailgun/sarama,DataDog/sarama,kraveio/sarama,aybabtme/sarama,pronix/sarama,VividCortex/sarama,yangfan876/sarama,raisemarketplace/sarama,betable/sarama,remerge/sarama,jimmykuo/sarama,Neuw84/sarama,yangfan876/sarama,Shopify/sarama,VividCortex/sarama,jepst/sarama,rafrombrc/sarama,LastManStanding/sarama