[DTOSS-12318] - feat(iac): add Azure Bastion module with public IP and diagnostic settings

[josielsouzanordcloud]

Description

This PR adds a new Terraform module for deploying an Azure Bastion host with a dedicated public IP address and diagnostic settings. The module integrates with the subnet and log analytics workspace modules, providing comprehensive configuration options for different SKUs, features, and diagnostics. This enables secure remote access to virtual machines without exposing them directly to the internet.

Type of change

• Bug fix
• New feature
• Breaking change
• Infrastructure change
• Pipeline / CI
• Documentation update
• Refactor

Jira link

DTOSS-12318

Review notes

• New Module Creation: A new bastion module has been added under infrastructure/modules/bastion.
• Documentation: Updated README.md, tfdocs.md, and other relevant documentation files.
• Configuration: Added configuration files for inputs, outputs, variables, and diagnostics settings.
• Resource Management: Created an Azure Bastion host with a public IP address and integrated diagnostic settings.

Breaking changes

None

Impact

• Infrastructure: Adds a new Bastion host resource with configurable features like SKU, scale units, and diagnostic logging.
• Security: Enhances security by providing secure remote access without direct internet exposure.
• Monitoring: Improved monitoring through diagnostic logs sent to Log Analytics workspace.

Checklist

• I am familiar with the contributing guidelines
• I have followed the code style of the project
• I have added tests to cover my changes
• I have updated the documentation accordingly
• This PR is a result of pair or mob programming

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