Add Cloud-init and TPM Support

[aleskxyz]

Description:

This pull request introduces two major enhancements to the libvirt_vm role: Cloud-init integration and TPM support.

1. Cloud-init Support:

• Added cloud-init integration for VM provisioning
• Implemented cloud-init configuration templates:
  • meta-data
  • user-data
  • network-config
• Enhanced VM destruction process to clean up cloud-init resources
• Updated network interface checking functionality
• Updated documentation with cloud-init configuration examples

2. TPM (Trusted Platform Module) Support:

• Added TPM device configuration in VM XML template
• Introduced new VM configuration parameters:
  • tpm_enabled: Toggle TPM support (default: false)
  • tpm_version: Select TPM version ('1.2' or '2.0', default: '2.0')

Dependencies:

• genisoimage package is required for cloud-init support
• swtpm and swtpm-tools packages are required for TPM support

Example Usage:

vm:
  name: example-vm
  # Cloud-init configuration
  cloud_init_enabled: true
  cloud_init_user_data:
    users:
      - name: myuser
        sudo: ALL=(ALL) NOPASSWD:ALL
  
  # TPM configuration
  tpm_enabled: true
  tpm_version: "2.0"