feat(cli): Support `xenoncli cluster gtid json` (#163)

bugfix: nil rsp called. (#160)

Merge pull request #153 from acekingke/LogPosInConfig

*:add xtrabackup gtid info to config

ctl: add v1/raft/disable api

ctl: add /v1/raft/disablechecksemisync api

ctl: add v1/xenon/ping

ctl/v1: add params check

ctl: add v1/raft/trytoleader

update makefile

ctl: add v1/cluster/add and v1/cluster/remove api

*: add retry times for http api

Merge pull request #139 from zhyass/feature_adapt_k8s

*: add AuthBasic for httpl api and add config EnableAPIs

*: add http api for adapt kubernetes