Replace redis client

[lengrongfu]

current use github.com/gomodule/redigo/redis client, but it only support single node redis , i hope add redis sentinel, ref pr this #2886, we can use https://github.com/redis/go-redis client to use redis cluster、redis sentinel、single redis server.

[lengrongfu]

@dmcgowan What do you think of the proposal to replace the golang redis client?

[davidspek]

@lengrongfu I think it makes sense to use what seems to be the official redis client. Although we might want to double check the BSD 2-Clause is compatible with the Apache2 license of this repo (I believe it is).