添加 event新类型，添加 计算 基座 Pod上 最大/最小/平均 已被调度模块实例个数 修复ModuleDeployment单测

[liu-657667]

1. 背景
   当前无法直观的查询到基座上部署的模块实例个数，可以给 K8S Pod、Deployment 或 ReplicaSet 上加一些 label，让用户能直观的看到基座上部署的模块实例个数

2. 当前影响
   无法直观的查询到基座上部署的模块实例个数

3. 解决方案
   每次扩缩容完毕后，获取全量pod计算 基座 Pod上 最大/最小/平均 已被调度模块实例个数

[codecov]

Codecov Report

Attention: 30 lines in your changes are missing coverage. Please review.

Comparison is base (ca9a253) 76.00% compared to head (aab79e5) 77.24%.
Report is 224 commits behind head on master.

Files	Patch %	Lines
...ndler/modulereplicaset_replicas_changed_handler.go	70.00%	14 Missing and 7 partials ⚠️
module-controller/internal/utils/test_utils.go	89.41%	6 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #208      +/-   ##
==========================================
+ Coverage   76.00%   77.24%   +1.24%     
==========================================
  Files          15       17       +2     
  Lines        1421     1582     +161     
==========================================
+ Hits         1080     1222     +142     
- Misses        243      253      +10     
- Partials       98      107       +9     

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[lvjing2]

通过模块实例聚合出来，或者调研arklet接口呢？

[liu-657667]

通过模块实例聚合出来，或者调研arklet接口呢？

ok

[gold300jin]

LGTM