[WIP] feat: Integrate ocp-base with SLZ

[Aashiq-J]

Description

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Issue : #324

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Release notes content

https://github.com/terraform-ibm-modules/terraform-ibm-landing-zone/blob/extend-output/.docs/update-version.md

[vburckhardt]

Hi @Aashiq-J - thanks for the PR.

I think the approach should be as follows:

• Create new repos under terraform-ibm-module for the ocp-all-inclusive, ocp-base, ocp-observability-agent modules. This is the same repo structure as we currently have internally. The idea here is to enable the use of those modules on top of SLZ VPCs, but also usable on top of any VPC, including the VPC structure used internally
• In the ocp-all-inclusive example folder, have an example of deploying the ocp-all-inclusive module on top of an existing SLZ VPC. See the VSI example here https://github.com/terraform-ibm-modules/terraform-ibm-landing-zone-vsi/blob/main/examples/default/main.tf as a source of inspiration. You could use https://github.com/terraform-ibm-modules/terraform-ibm-landing-zone/tree/main/examples/no-compute-example as a base to create the VPC.