[ISSUE #4791] Add elect master command for admin CLI

[mxsm]

Make sure set the target branch to develop

What is the purpose of the change

close #4791

Brief changelog

• Add elect master command for admin CLI

Verifying this change

XXXX

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[coveralls]

Coverage decreased (-0.02%) to 49.137% when pulling d1e93a388f7ebc8f4b1b0116c613b6407a0b230a on mxsm:rocketmq-4791 into 9b87205c6d44e1c08aa5ae9aee6f2b28a60bb586 on apache:develop.

[codecov-commenter]

Codecov Report

Merging #4798 (d1e93a3) into develop (9b87205) will decrease coverage by 0.10%. The diff coverage is 22.52%.

@@              Coverage Diff              @@
##             develop    #4798      +/-   ##
=============================================
- Coverage      45.09%   44.99%   -0.11%     
+ Complexity      7645     7642       -3     
=============================================
  Files            977      978       +1     
  Lines          67965    68059      +94     
  Branches        8985     8999      +14     
=============================================
- Hits           30646    30620      -26     
- Misses         33552    33652     +100     
- Partials        3767     3787      +20     

Impacted Files	Coverage Δ
...g/apache/rocketmq/client/impl/MQClientAPIImpl.java	23.38% <0.00%> (-0.28%)	:arrow_down:
...r/namesrv/controller/ElectMasterRequestHeader.java	0.00% <0.00%> (ø)
...apache/rocketmq/tools/admin/DefaultMQAdminExt.java	31.97% <0.00%> (-0.19%)	:arrow_down:
...he/rocketmq/tools/admin/DefaultMQAdminExtImpl.java	25.67% <0.00%> (-0.03%)	:arrow_down:
.../apache/rocketmq/tools/command/MQAdminStartup.java	0.00% <0.00%> (ø)
...ls/command/controller/ReElectMasterSubCommand.java	0.00% <0.00%> (ø)
...ntroller/processor/ControllerRequestProcessor.java	24.17% <23.07%> (-2.02%)	:arrow_down:
...q/controller/impl/manager/ReplicasInfoManager.java	65.58% <66.66%> (+2.03%)	:arrow_up:
...etmq/namesrv/routeinfo/BatchUnRegisterService.java	94.73% <0.00%> (-5.27%)	:arrow_down:
...org/apache/rocketmq/common/stats/StatsItemSet.java	46.26% <0.00%> (-4.48%)	:arrow_down:
... and 26 more

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[hzh0425]

Thank you for your contribution. After modifying the above review suggestions, can you test your cli command and add a picture to prove the correctness? (The elect master command can correctly trigger the master election) @mxsm

[mxsm]

Thank you for your contribution. After modifying the above review suggestions, can you test your cli command and add a picture to prove the correctness? (The elect master command can correctly trigger the master election) @mxsm

OK, I will

[mxsm]

Correctness result proof。 environment: two brokers are deployed in the WSL, Namesrv(Controller) is deployed in windows. Thanks for your code review and advice @hzh0425 @RongtongJin