[v2] Major refactoring for v2 runner/runcontext

[yuwenma]

Related: #5673

Description

• Seperate runcontext.Runcontext to V1 and V2, each runcontext holds its own v1 and v2 schema
• Store schema configs in their versioned runner. This decouple the versioned functions in cmd (where latestV1 is referred).
• Add Renderer to withTiming

[codecov]

Codecov Report

Merging #6077 (c8c90dc) into master (36803b4) will decrease coverage by 0.62%.
The diff coverage is 21.77%.

@@            Coverage Diff             @@
##           master    #6077      +/-   ##
==========================================
- Coverage   70.20%   69.58%   -0.63%     
==========================================
  Files         475      479       +4     
  Lines       18147    18325     +178     
==========================================
+ Hits        12741    12751      +10     
- Misses       4470     4638     +168     
  Partials      936      936              

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/apply.go	25.00% <0.00%> (ø)
cmd/skaffold/app/cmd/cmd.go	69.04% <ø> (+0.47%)	⬆️
cmd/skaffold/app/cmd/delete.go	57.14% <0.00%> (ø)
cmd/skaffold/app/cmd/deploy.go	61.90% <0.00%> (+5.38%)	⬆️
cmd/skaffold/app/cmd/filter.go	25.58% <0.00%> (ø)
cmd/skaffold/app/cmd/generate_pipeline.go	61.53% <0.00%> (ø)
cmd/skaffold/app/cmd/render.go	40.74% <0.00%> (ø)
cmd/skaffold/app/cmd/test.go	53.84% <0.00%> (+7.17%)	⬆️
pkg/skaffold/debug/apply_transforms.go	32.83% <ø> (ø)
pkg/skaffold/render/renderer/renderer.go	59.30% <ø> (ø)
... and 33 more

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[yuwenma]

Moved to #6081