Add active failure recovery option to reduce app failures

[aronica]

FailoverCheckingStrategy currently relies on cache expire of google guava, the thrift server may still be abnormal after the cache is expired, next time the application request will failed.

[PhantomThief]

You're right. The current strategy is a very simple one without any active checking strategy. I've made an independent failover strategy here: https://github.com/PhantomThief/simple-failover-java

and yet to be ported to this project.