Grpc plugin

[SaberSola]

#300 suport grpc

Make sure that:

• You have read the contribution guidelines.
• You submit test cases (unit or integration tests) that back your changes.
• Your local test passed mvn clean install -Dmaven.javadoc.skip=true.

[codecov-io]

Codecov Report

Merging #1081 (45a1d43) into master (aa3bf17) will decrease coverage by 0.07%.
The diff coverage is 8.69%.

@@             Coverage Diff              @@
##             master    #1081      +/-   ##
============================================
- Coverage     74.69%   74.61%   -0.08%     
- Complexity     2134     2138       +4     
============================================
  Files           362      362              
  Lines          8059     8081      +22     
  Branches        889      892       +3     
============================================
+ Hits           6020     6030      +10     
- Misses         1581     1591      +10     
- Partials        458      460       +2     

Impacted Files	Coverage Δ	Complexity Δ
...ra/soul/admin/controller/SoulClientController.java	88.88% <0.00%> (-11.12%)	6.00 <0.00> (ø)
...in/service/impl/SoulClientRegisterServiceImpl.java	91.34% <0.00%> (-5.45%)	46.00 <0.00> (ø)
...va/org/dromara/soul/common/constant/Constants.java	50.00% <ø> (ø)	1.00 <0.00> (ø)
.../soul/plugin/global/DefaultSoulContextBuilder.java	72.30% <0.00%> (-8.73%)	11.00 <0.00> (ø)
...java/org/dromara/soul/common/enums/PluginEnum.java	100.00% <100.00%> (ø)	3.00 <0.00> (ø)
...ava/org/dromara/soul/common/enums/RpcTypeEnum.java	64.28% <100.00%> (ø)	1.00 <0.00> (ø)
...soul/client/tars/TarsServiceBeanPostProcessor.java	47.94% <0.00%> (+1.36%)	11.00% <0.00%> (+1.00%)
.../soul/admin/service/impl/UpstreamCheckService.java	76.92% <0.00%> (+1.53%)	15.00% <0.00%> (+1.00%)
...omara/soul/sync/data/http/HttpSyncDataService.java	72.54% <0.00%> (+6.86%)	12.00% <0.00%> (ø%)

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