[WAIT] Implement server plan methods of Wait plugin

[t-kikuc]

What this PR does:

Implemented the following methods:

• DetermineVersions()
• DetermineStrategy()
• BuildQuickSyncStages()
• BuildPipelineSyncStages()

Why we need it:

to plan wait stages

Note

[IMO] It'd be better to set values of the following variables of BuildQuick(or Pipeline)SyncStagesResponse on piped planner side:

• Status
• CreatedAt
• UpdatedAt

That's because plugins should not set wrong values and they're not related to plugin behavior.

Which issue(s) this PR fixes:

Part of #5367

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 93.93939% with 2 lines in your changes missing coverage. Please review.

Project coverage is 26.59%. Comparing base (e0dfc18) to head (574ae17).
Report is 14 commits behind head on master.

Files with missing lines	Patch %	Lines
pkg/app/pipedv1/controller/planner.go	0.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5504      +/-   ##
==========================================
+ Coverage   26.28%   26.59%   +0.31%     
==========================================
  Files         464      464              
  Lines       49624    49942     +318     
==========================================
+ Hits        13043    13284     +241     
- Misses      35547    35597      +50     
- Partials     1034     1061      +27     

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