Add the common module with XDS circuit breaker and rate limiting function

[hanbingleixue]

What type of PR is this?

Feature

What this PR does / why we need it?

Add the common part of Xds flow control plugin

Which issue(s) this PR fixes？

Fixes #1515

Does this PR introduce a user-facing change?

No

Checklist

• Make sure there is a GitHub_issue related with this PR before you start working on it.
• Make sure you have squashed your change to one single commit.
• GitHub Actions works fine in this PR.

[codecov]

Codecov Report

Attention: Patch coverage is 50.94340% with 182 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...ant/flowcontrol/common/xds/handler/XdsHandler.java	25.00%	50 Missing and 10 partials ⚠️
...ermant/flowcontrol/common/util/XdsRouterUtils.java	52.17%	18 Missing and 4 partials ⚠️
...l/common/xds/circuit/XdsCircuitBreakerManager.java	66.66%	9 Missing and 12 partials ⚠️
...trol/common/xds/ratelimit/XdsRateLimitManager.java	0.00%	19 Missing ⚠️
...ontrol/common/core/match/XdsRouteMatchManager.java	60.97%	8 Missing and 8 partials ⚠️
...wcontrol/common/xds/lb/XdsLoadBalancerFactory.java	0.00%	12 Missing ⚠️
...ment/service/xds/utils/RdsProtocolTransformer.java	0.00%	10 Missing ⚠️
...ntrol/common/xds/lb/XdsRoundRobinLoadBalancer.java	0.00%	9 Missing ⚠️
...flowcontrol/common/entity/FlowControlResponse.java	0.00%	7 Missing ⚠️
...owcontrol/common/xds/lb/XdsRandomLoadBalancer.java	0.00%	5 Missing ⚠️
... and 1 more

Flag	Coverage Δ	Complexity Δ
unittests	43.94% <50.94%> (+0.06%)	181.00 <0.00> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ	Complexity Δ
...a/io/sermant/core/service/xds/entity/XdsAbort.java	100.00% <ø> (ø)	0.00 <0.00> (ø)
...a/io/sermant/core/service/xds/entity/XdsDelay.java	100.00% <ø> (ø)	0.00 <0.00> (ø)
...lowcontrol/common/config/XdsFlowControlConfig.java	100.00% <100.00%> (ø)	0.00 <0.00> (?)
...flowcontrol/common/entity/FlowControlScenario.java	100.00% <100.00%> (ø)	0.00 <0.00> (?)
...io/sermant/flowcontrol/common/util/RandomUtil.java	100.00% <100.00%> (ø)	0.00 <0.00> (?)
...trol/common/xds/circuit/XdsCircuitBreakerInfo.java	100.00% <100.00%> (ø)	0.00 <0.00> (?)
...control/common/xds/ratelimit/XdsRateLimitInfo.java	100.00% <100.00%> (ø)	0.00 <0.00> (?)
...nt/flowcontrol/common/util/XdsThreadLocalUtil.java	91.66% <91.66%> (ø)	0.00 <0.00> (?)
...owcontrol/common/xds/lb/XdsRandomLoadBalancer.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...flowcontrol/common/entity/FlowControlResponse.java	62.50% <0.00%> (-25.74%)	0.00 <0.00> (ø)
... and 8 more

... and 25 files with indirect coverage changes