Added Home lab setup under docs section

[joyosive]

What type of PR is this?
/kind documentation
/kind enhancement

What this PR does / why we need it:
Added SODA Lab setup documentation to help new folks in getting started with SODA testing .

[anvithks]

@joyosive Welcome to the SODA Documentation repository. Thank you for this first PR.

This is a very detailed instruction set on how to setup a homelab.

This PR has details to setup a homelab but it would help if there is one top-level document, right at the start in the SODA Lab Setup page, detailing what a user will be able to do after this SODA Lab setup. What are the different sections and how they can use the different modules.

Could you please explain these optional pre-optimisations and what they help with?

• Optional Pre-optimisations :
  • Pi-Hole Setup
  • Registry Setup
  • Sonatype Nexus Artifactory Setup

What each of these sections does and how they help with SODA Setup?

• Vagrant Setup
• Kubernetes Setup
• Ceph Setup

If you are working on some parts or pages and intend to add more commits to this PR then prefix the title of this PR with [WIP].

• ESXi Setup
• Integration of K8s with Ceph via SODA

[anvithks]

@joyosive Some review comments.
I will add few more when I am able to review the rest of the documents.

[anvithks]

Consider adding a overall summary of Home lab setup letting the user know what all the sections help with and how it helps with SODA Installation.

[anvithks]

SODA is not fully qualified for Ubuntu 20.04.
Maybe update the steps for Ubuntu 18.04/16.04 and associated changes.

[anvithks]

Consider using the Notice shortcode. It will help bring out important points in long documents.

[anvithks]

This path points to 404. The zip file is in the same directory as the document. Maybe change to ./k8s-scripts.zip.
Same for other zip files.
Consider placing them in the static folder in the documentation root.