feat: reworked rotate-certs command

[jadarsie]

Reason for Change:

This PR tries to resurrect aks-engine rotate-certs.

Notes:

• Breaking change: a few parameters renamed for consistency with get-logs

Credit Where Due:

Does this change contain code from or inspired by another project?

• No
• Yes

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Notes:

[codecov]

Codecov Report

Merging #4214 (83fb304) into master (908ad43) will decrease coverage by 1.30%.
The diff coverage is 49.29%.

@@            Coverage Diff             @@
##           master    #4214      +/-   ##
==========================================
- Coverage   73.36%   72.06%   -1.31%     
==========================================
  Files         135      141       +6     
  Lines       20849    21690     +841     
==========================================
+ Hits        15296    15631     +335     
- Misses       4576     5102     +526     
+ Partials      977      957      -20     

Impacted Files	Coverage Δ
cmd/rotatecerts/arm.go	0.00% <0.00%> (ø)
pkg/armhelpers/azurestack/compute.go	29.41% <0.00%> (-2.17%)	⬇️
pkg/armhelpers/compute.go	24.35% <0.00%> (-4.43%)	⬇️
pkg/armhelpers/mockclients.go	24.06% <0.00%> (-0.11%)	⬇️
pkg/engine/templates_generated.go	43.42% <0.00%> (-0.77%)	⬇️
pkg/kubernetes/client.go	0.00% <0.00%> (ø)
cmd/rotate_certs.go	11.62% <10.44%> (-52.45%)	⬇️
cmd/root.go	56.28% <38.46%> (-1.25%)	⬇️
pkg/api/apiloader.go	71.42% <60.00%> (-1.42%)	⬇️
cmd/rotatecerts/wait.go	72.18% <72.18%> (ø)
... and 9 more

---

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[jackfrancis]

/lgtm

pending E2E signal

[acs-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jackfrancis, jadarsie

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