feat: set up gcp terraform plan

[tooniez]

Is your feature request related to a problem? Please describe.

Setting up GCP Terraform involves configuring the necessary infrastructure to deploy Pi-hole on a Google Cloud Platform micro VM instance. The current setup process can be cumbersome and error-prone, especially for users unfamiliar with Terraform or GCP specifics.

Describe the solution you'd like

To streamline the setup process for deploying Pi-hole on GCP using Terraform, I propose the creation of a comprehensive setup guide that includes step-by-step instructions and automation scripts. This guide should cover:

• Pre-requisites for setting up Terraform on GCP.
• Detailed steps to configure GCP services required by Pi-hole.
• Scripts to automate the deployment and configuration processes.
• Validation steps to ensure the setup is successful.

Additional context

This feature request aims to make the deployment of Pi-hole on GCP accessible to users with varying levels of expertise in cloud infrastructure. By simplifying the setup process, we can enhance user experience and reduce the potential for errors during manual setup.