feat(*): add volcengine cloud provider and clb plugin

[lizhipeng629]

Add the volcengine provider to open-kruise-game and add the clb plugin.

• Users can declare the required clb id and the corresponding backend pod port in okg's gameserverset resource.

-OKG will automatically help users create corresponding services to implement traffic forwarding
Implementation principle

• Through okg, when creating a service, add clb-related anno to the service; then the cloud-controller-manager component in the vke cluster will recognize the clb anno in the service, create a listener on the clb side, and bind the back-end server group , realize traffic forwarding

Details can be found in the README

[kruise-bot]

Welcome @lizhipeng629! It looks like this is your first PR to openkruise/kruise-game 🎉

[codecov]

Codecov Report

Attention: 175 lines in your changes are missing coverage. Please review.

Comparison is base (2b6ce6f) 39.12% compared to head (cc46913) 39.96%.

Files	Patch %	Lines
cloudprovider/volcengine/clb.go	50.00%	158 Missing and 5 partials ⚠️
cloudprovider/volcengine/volcengine.go	20.00%	11 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #127      +/-   ##
==========================================
+ Coverage   39.12%   39.96%   +0.84%     
==========================================
  Files          26       28       +2     
  Lines        3581     3923     +342     
==========================================
+ Hits         1401     1568     +167     
- Misses       2098     2267     +169     
- Partials       82       88       +6     

Flag	Coverage Δ
unittests	39.96% <48.83%> (+0.84%)	⬆️

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[flyer103]

lgtm

[kruise-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[ringtail]

/LGTM