[k8s plugin] Prepare for implementing livestate apis

[Warashi]

What this PR does:

• [refactor] Implement GetLiveResources in the provider package and use it from the deployment package
• [feature] initial implementation of BuildApplicationLiveState to implement the livestate feature

Why we need it:

To implement the livestate API for plugin-architectured piped.

Which issue(s) this PR fixes:

Part of #4980

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov]

Codecov Report

Attention: Patch coverage is 58.18182% with 23 lines in your changes missing coverage. Please review.

Project coverage is 26.55%. Comparing base (90170ba) to head (1ab511c).
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
...ipedv1/plugin/kubernetes/provider/liveresources.go	58.49%	21 Missing and 1 partial ⚠️
...g/app/pipedv1/plugin/kubernetes/deployment/sync.go	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5510      +/-   ##
==========================================
+ Coverage   26.19%   26.55%   +0.35%     
==========================================
  Files         464      465       +1     
  Lines       49815    49958     +143     
==========================================
+ Hits        13049    13266     +217     
+ Misses      35733    35633     -100     
- Partials     1033     1059      +26     

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