Merge pull request redis#1495 from go-redis/fix/dependency-chain

Reduce dependency chain

Update changelog

Add bug report template

Merge pull request redis#1485 from go-redis/fix/sentinel-route-by

Add Sentinel RouteBy

Merge pull request redis#1473 from go-redis/feature/failover-cluster-…

…client

Feature/failover cluster client

Merge branch 'master' of github.com:go-redis/redis

Merge pull request redis#1456 from dmitsh/ds-sentinel-password

add Sentinel password to UniversalOptions

Update dependencies

Add qscan to iterator

Merge pull request redis#1419 from lsytj0413/fix-default-dialtimeout

feat(option): default dialtimeout take effect when dialer is nil