🌱 Moves vcsim builder code to remove cyclic dependency

[srm09]

What this PR does / why we need it:
This patch moves the vcsim builder to a different package under test/helpers directory to remove cyclic dependency/

Which issue(s) this PR fixes:
Fixes the issue raised in the PR comment

Special notes for your reviewer:

Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

Release note:

NONE

[srm09]

/assign @aartij17

[srm09]

/retest

[srm09]

/retest

[aartij17]

/lgtm

[srm09]

/retest

[k8s-ci-robot]

@srm09: The following test 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-vsphere-apidiff-main	6a2a84b	link	false	/test pull-cluster-api-provider-vsphere-apidiff-main

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.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[srm09]

Ignoring the apidiff failure here since all the changed types are only used for testing purposes.
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: srm09

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