Update VM based templates with private IP and update Tiltfile

[nawazkh]

What type of PR is this?
/kind feature

What this PR does / why we need it:

• This PR updates the templates (based off of VMs) to use private IP of the API Server of the control plane of the workload cluster for inter-node communication.
• This PR also updates the Tiltfile with logic to peer AKS VNets with workload cluster's VNets.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes # #5261

Special notes for your reviewer:

• cherry-pick candidate

TODOs:

• squashed commits
• includes documentation
• adds unit tests

Release note:

Update VM based templates to use Private IP solution for workload cluster's inter-node communication. Also update Tiltfile to update AKS Vnet with workload cluster's VNet

[k8s-ci-robot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.86%. Comparing base (4ff53b9) to head (b5e35e0).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5248   +/-   ##
=======================================
  Coverage   52.86%   52.86%           
=======================================
  Files         270      270           
  Lines       29121    29121           
=======================================
  Hits        15395    15395           
  Misses      12933    12933           
  Partials      793      793           

☔ View full report in Codecov by Sentry.
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[nawazkh]

/test pull-cluster-api-provider-azure-e2e

[k8s-ci-robot]

@nawazkh: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cluster-api-provider-azure-windows-with-ci-artifacts	b5e35e0	link	false	/test pull-cluster-api-provider-azure-windows-with-ci-artifacts
pull-cluster-api-provider-azure-windows-custom-builds	b5e35e0	link	false	/test pull-cluster-api-provider-azure-windows-custom-builds
pull-cluster-api-provider-azure-conformance-dual-stack-with-ci-artifacts	b5e35e0	link	false	/test pull-cluster-api-provider-azure-conformance-dual-stack-with-ci-artifacts
pull-cluster-api-provider-azure-e2e	b5e35e0	link	true	/test pull-cluster-api-provider-azure-e2e

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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