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Refactor kube-proxy service/endpoints update so that can be consumed among different proxiers

**What this PR does / why we need it**:

There are huge duplication among different proxiers.  For example, the service/endpoints list/watch part in iptables, ipvs and windows kernel mode(to be get in soon).

I think the more places this is replicated the harder it becomes to keep correct. We may need to refactor it and let different proxiers consume the same code.

**Which issue this PR fixes**: 

fixes #52464

**Special notes for your reviewer**:

* This refactor reduces **500** Lines in iptables proxy, so it will reduce **500*N**(number of proxiers) lines in total. People no need to care the service/endpoints update logic any more and can be more focus on proxy logic.

* I would like to do the following things in follow-ups:

1. rsync it to ipvs proxier

2. rsync it to winkernel proxier

**Release note**:

```release-note
Refactor kube-proxy service/endpoints update so that can be consumed among different proxiers
```