Add cert-manager templates to providers

[saimanoj01]

What this PR does / why we need it

In CAPI v1.0.0, it moved away from relying on a packaged version of cert-manager manifests during management cluster creation. Instead it is pulling the cert-manager manifest from github. This change ensures that CAPI uses the cert-manager manifests packaged along with the providers instead of pulling from github.

Which issue(s) this PR fixes

Fixes #1114

Describe testing done for PR

1. Deleted the ~/config/tanzu/tkg directory and successfully created a management cluster. Made sure that the cert-manager image is being pulled from the tkg registry.
2. Created a management cluster with the config file already populated with cert-manager entry.

Release note

Package cert-manager v1.5.3 manifests along with the providers. 

PR Checklist

• Squash the commits into one or a small number of logical commits
  
• Use good commit messages
• Ensure PR contains terms all contributors can understand and links all contributors can access

Additional information

Special notes for your reviewer

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/1162/20211115162613/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/1162/20211115165108/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/1162/20211115170203/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[prkalle]

LGTM. Thanks!

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/1162/20211115205607/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[anujc25]

Is the addition of pkg/v1/tkg/fakes/providers/providers.zip file intentional? Is it getting used for unit tests?

Otherwise LGTM

[saimanoj01]

@anujc25 Yes, that was intentional. I modified it for the sake of unit tests. Thanks

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/1162/20211116011715/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[imikushin]

Thanks for addressing my comments! Just one small detail and it's good to go.

[imikushin]

LGTM 👍
Thank you!

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/1162/20211116171252/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/1162/20211116171326/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.

[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/1162/20211116172213/clustergen.diff.txt
Author/reviewers:
Please review to verify that the effects on the generated cluster configurations are exactly what the PR intended, and give a thumbs-up if so.