feat: support aliyun rocketmq namespace

[MarvinWilliam]

增加对阿里云自创建实例的支持

[gxcsoccer]

ci 很多 AuthenticationException

RemotingCommand{code:1,customHeader:undefined,flag:1,opaque:1,remark:"com.aliyun.openservices.ons.api.impl.authority.exception.AuthenticationException: com.alibaba.ons.open.exception.OnsException: __accessKey is blank., 

[denghongcai]

ci 很多 AuthenticationException

RemotingCommand{code:1,customHeader:undefined,flag:1,opaque:1,remark:"com.aliyun.openservices.ons.api.impl.authority.exception.AuthenticationException: com.alibaba.ons.open.exception.OnsException: __accessKey is blank., 

他这个报错是因为 ci 是在他自己的配置下跑的，没 accesskey 这些环境变量

[codecov[bot]]

Codecov Report

Merging #68 into master will decrease coverage by 31.62%. The diff coverage is 100%.

@@             Coverage Diff             @@
##           master      #68       +/-   ##
===========================================
- Coverage   91.55%   59.93%   -31.63%     
===========================================
  Files          35       35               
  Lines        1812     1822       +10     
===========================================
- Hits         1659     1092      -567     
- Misses        153      730      +577

Impacted Files	Coverage Δ
lib/producer/mq_producer.js	41.86% <100%> (-53.34%)	:arrow_down:
lib/client_config.js	100% <100%> (ø)	:arrow_up:
lib/consumer/mq_push_consumer.js	42.97% <100%> (-49.76%)	:arrow_down:
lib/store/remote_broker.js	15.71% <0%> (-81.43%)	:arrow_down:
lib/producer/topic_publish_info.js	35.29% <0%> (-58.83%)	:arrow_down:
lib/process_queue.js	20.83% <0%> (-58.34%)	:arrow_down:
lib/mq_client_api.js	24.18% <0%> (-53.49%)	:arrow_down:
lib/channel.js	46.66% <0%> (-53.34%)	:arrow_down:
... and 9 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 073058b...3ce5109. Read the comment docs.

[codecov[bot]]

Codecov Report

Merging #68 into master will decrease coverage by 31.62%. The diff coverage is 100%.

@@             Coverage Diff             @@
##           master      #68       +/-   ##
===========================================
- Coverage   91.55%   59.93%   -31.63%     
===========================================
  Files          35       35               
  Lines        1812     1822       +10     
===========================================
- Hits         1659     1092      -567     
- Misses        153      730      +577

Impacted Files	Coverage Δ
lib/producer/mq_producer.js	41.86% <100%> (-53.34%)	:arrow_down:
lib/client_config.js	100% <100%> (ø)	:arrow_up:
lib/consumer/mq_push_consumer.js	42.97% <100%> (-49.76%)	:arrow_down:
lib/store/remote_broker.js	15.71% <0%> (-81.43%)	:arrow_down:
lib/producer/topic_publish_info.js	35.29% <0%> (-58.83%)	:arrow_down:
lib/process_queue.js	20.83% <0%> (-58.34%)	:arrow_down:
lib/mq_client_api.js	24.18% <0%> (-53.49%)	:arrow_down:
lib/channel.js	46.66% <0%> (-53.34%)	:arrow_down:
... and 9 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 073058b...3ce5109. Read the comment docs.

[MarvinWilliam]

@gxcsoccer @denghongcai 麻烦帮我跑下吧，这个namespace需要创建新的非default阿里云rocketmq实例

[denghongcai]

其实这个 namespace 只是往 group 和 topic 前加了东西，感觉也不用改代码？

[MarvinWilliam]

@denghongcai 对，是在 group 和 topic 前拼接了实例id，不影响原有逻辑，我是想保持阿里云rocketmq几个sdk调用方式的统一

[gxcsoccer]

这个在 egg-ons 插件里面改吧，没必要在基础库里做了

[MarvinWilliam]

@gxcsoccer 嗯，那我调整一下

[MarvinWilliam]

@gxcsoccer 如果在egg-ons里面处理namespace，面对默认group的初始化方式，egg-ons还需要来拿ali-ons中默认group的值再拼接上namespace，但是ali-ons默认的group名字并不对外暴露，我考虑了下，觉得这个namespace还是要在基础库里处理

[gxcsoccer]

@MarvinWilliam https://github.com/eggjs/egg-ons/blob/master/lib/ons.js 在这里面拼接就好了吧

[gxcsoccer]

@MarvinWilliam 这个功能由官方的文档吗？

[gxcsoccer]

这个可以 reopen，但是要想办法把单测搞好

[gxcsoccer]

https://github.com/ali-sdk/ali-ons/pull/75