Cluster resource modeling

[halfrost]

This pr is for issue #772 . My solution is the picture below:

change splay tree to red black tree.

[karmada-bot]

Welcome @halfrost! It looks like this is your first PR to karmada-io/karmada 🎉

[Poor12]

Hi, @halfrost, please check DCO and other CI failure.

[Poor12]

cc @RainbowMango to start CI

[RainbowMango]

Hi @halfrost @Poor12 created an issue(#2379) to track the whole task, he will work with you to finish it.

[halfrost]

Hi @halfrost @Poor12 created an issue(#2379) to track the whole task, he will work with you to finish it.

Sounds great. We will try our best to complete this task together.

[halfrost]

@Poor12 I have already split API part out of this pr. Please review API part in this pr https://github.com/karmada-io/karmada/pull/2386

[RainbowMango]

@halfrost I tried to fix the CI failure and pushed the commits to your branch on your forked GitHub repo.

Now the CI failure is due to #2404 and is not available in the period August 22, 12:00 UTC - August 22, 16:00 UTC. You can rebase your branch and push again, or I'll retrigger it tomorrow.

[Poor12]

Generallly look good to me，cc @RainbowMango

[karmada-bot]

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