Add Terraform Scaffold for Azure VM and Nginx Deployment

[PandelisZ]

This pull request introduces a comprehensive Terraform scaffold to deploy a production-grade environment on Azure, utilizing Virtual Machines and Nginx. Key components include:

• Creation of a Resource Group and Virtual Network with dedicated subnets.
• Configuration of a Network Security Group with least-privilege inbound rules.
• Implementation of a Public Standard Load Balancer with HTTP and optional HTTPS.
• Setup of a Linux VM Scale Set running Ubuntu 22.04, configured with Cloud-init to install and set up Nginx and PHP-FPM.
• Optional Azure Bastion integration for secure SSH access.

This scaffold is designed to facilitate future application deployments by providing a solid foundational infrastructure, ensuring best practices for security, and ease of management.

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This pull request was co-created with Cosine Genie

Original Task: drupal-project/pfa4anjb4h09
Author: Pandelis Zembashis