Add Sentinel MyBatis adapter module

[kaizi2009]

Resolves #1113

Why we need it?

Database needs sentinel, because:

In most cases, the bottleneck of the system is the database. Although there are web or rpc sentinel, but some unimportant requests occupy database resources.

How to verify it?

Implements org.apache.ibatis.plugin.Interceptor

Junit:

module: sentinel-adapter/sentinel-mybatis-adapter com.alibaba.csp.sentinel.adapter.mybatis.test.TestMapperInterceptor com.alibaba.csp.sentinel.adapter.mybatis.test.TestMybatisTransactional com.alibaba.csp.sentinel.adapter.mybatis.test.TestReadInterceptor com.alibaba.csp.sentinel.adapter.mybatis.test.TestTotalInterceptor com.alibaba.csp.sentinel.adapter.mybatis.test.TestWriteInterceptor

[codecov-io]

Codecov Report

Merging #1118 into master will increase coverage by 0.05%. The diff coverage is 56.60%.

@@             Coverage Diff              @@
##             master    #1118      +/-   ##
============================================
+ Coverage     43.53%   43.59%   +0.05%     
- Complexity     1677     1695      +18     
============================================
  Files           364      371       +7     
  Lines         10492    10543      +51     
  Branches       1409     1414       +5     
============================================
+ Hits           4568     4596      +28     
- Misses         5365     5384      +19     
- Partials        559      563       +4     

Impacted Files	Coverage Δ	Complexity Δ
...ibaba/csp/sentinel/slots/block/BlockException.java	44.44% <8.33%> (-9.85%)	10.00 <2.00> (+2.00)	:arrow_down:
...nel/adapter/mybatis/SentinelMapperInterceptor.java	41.66% <41.66%> (ø)	3.00 <3.00> (?)
...l/adapter/mybatis/AbstractSentinelInterceptor.java	73.68% <73.68%> (ø)	5.00 <5.00> (?)
...dapter/mybatis/SentinelCommandTypeInterceptor.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)
...tinel/adapter/mybatis/SentinelReadInterceptor.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)
...ntinel/adapter/mybatis/SentinelSqlInterceptor.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)
...inel/adapter/mybatis/SentinelTotalInterceptor.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)
...inel/adapter/mybatis/SentinelWriteInterceptor.java	100.00% <100.00%> (ø)	2.00 <2.00> (?)
...ava/com/alibaba/csp/sentinel/node/ClusterNode.java	96.55% <0.00%> (-3.45%)	10.00% <0.00%> (-1.00%)
...tinel/slots/block/flow/param/ParamFlowChecker.java	55.70% <0.00%> (-0.68%)	29.00% <0.00%> (-1.00%)
... and 7 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 be4d058...c3de882. Read the comment docs.

[sczyh30]

Could you please also sync your code with the master branch?

[kaizi2009]

Could you please also sync your code with the master branch?

OK.

[sczyh30]

Could you please also sync your code with the master branch?

OK.

@kaizi2009 Hi, any progress?

[sczyh30]

Friendly ping :)

[CLAassistant]

All committers have signed the CLA.

[kaizi2009]

Could you please also sync your code with the master branch?

OK.

@kaizi2009 Hi, any progress?

Done. Sorry, I'm busy these days.

[kaizi2009]

@sczyh30 Please review the code.

[kaizi2009]

@sczyh30 Please review the code. ( ^___^ )

[kaizi2009]

@sczyh30 Merging is blocked。What do I need to do next？

[ddavidzhang]

Still in progress?

[LearningGp]

This appears to be a practical adapter, but we're closing this PR due to prolonged inactivity. If you'd like to continue contributing, feel free to create a new PR based on the 1.8 branch and we'll prioritize processing it promptly.