Change proto v1 package name

[MarlonGamez]

related: #5986

Description
Renames the GoogleContainerTools/skaffold/proto/v1/ package name from proto to v1, by adding an option go_package statement in the proto file. This change needs to be made for future updates to our proto generation toolchain. It also makes package naming more understandable.

Most of the changes here are generated files or changing import statements.

[codecov]

Codecov Report

Merging #6112 (50ac645) into master (1f46f24) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #6112   +/-   ##
=======================================
  Coverage   70.15%   70.15%           
=======================================
  Files         475      475           
  Lines       18191    18191           
=======================================
  Hits        12761    12761           
  Misses       4487     4487           
  Partials      943      943           

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/runner.go	57.14% <ø> (ø)
pkg/diag/recommender/container_errors.go	0.00% <ø> (ø)
pkg/diag/validator/pod.go	1.09% <ø> (ø)
pkg/diag/validator/resource.go	50.00% <ø> (ø)
pkg/skaffold/build/build_problems.go	93.44% <ø> (ø)
pkg/skaffold/build/docker/errors.go	63.95% <ø> (ø)
pkg/skaffold/build/jib/errors.go	48.83% <ø> (ø)
pkg/skaffold/deploy/deploy_problems.go	80.00% <ø> (ø)
pkg/skaffold/deploy/error/errors.go	50.00% <ø> (ø)
pkg/skaffold/deploy/helm/errors.go	89.79% <ø> (ø)
... and 29 more

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[aaron-prindle]

LGTM

[container-tools-bot]

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