add ClusterResourceSet for installing Features and FeatureGates in management cluster

[yharish991]

Signed-off-by: yharish991 yharish991@gmail.com

What this PR does / why we need it:
This PR adds ClusterResourceSet CR for Feature and FeatureGates in providers template to install them in management cluster.

Which issue(s) this PR fixes:

Fixes #89

Describe testing done for PR:

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Added ClusterResourceSet CR to install Features and FeatureGates in management cluster

New PR Checklist

• Ensure PR contains only public links or terms
• Use good commit messages
• Squash the commits in this branch before merge to preserve our git history
• If this PR is just an idea or POC, use a Draft PR instead of a full PR
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[github-actions]

Cluster Generation A/B Results:
https://storage.googleapis.com/tkg-clustergen/642/20210916184808/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.

[yharish991]

//usebom:sandbox/v1.5.0-zshippable/372947407081581714/tkg-compatibility

[rajathagasthya]

@yharish991 Should we also add a "system" feature gate resource on the management cluster in this PR?

[yharish991]

@yharish991 Should we also add a "system" feature gate resource on the management cluster in this PR?

ya I covered that part in this pr #151, it applies a default FeatureGate CR at the time of management cluster creation

[yharish991]

this is not needed anymore as we took a different approach to install Features and FeatureGates using Carvel API #1046