Implement Ansible roles for Rocky Linux Testing Framework

- Added `bootstrap_sparrowdo` role for bootstrapping Sparrowdo on a VM.
- Introduced `cleanup_vm` role for cleaning up VMs and disk images.
- Created `download_image` role to download and cache QCOW2 images.
- Developed `golden_image` role for creating and customizing golden images.
- Implemented `provision_vm` role for provisioning VMs as linked clones.
- Added `run_test` role for executing tests with Sparrowdo.
- Created playbooks for building golden images, running single tests, and running test suites.
- Enhanced documentation with usage examples, configuration details, and troubleshooting tips.
- Added support for multiple cloud providers (AWS, Azure) in the test execution workflow.

Signed-off-by: Stephen Simpson <ssimpson89@users.noreply.github.com>

ansible/roles/provision_vm/defaults/main.yml

@@ -0,0 +1,18 @@
+---
+# Default variables for provision_vm role
+# Most settings come from inventory (group_vars/libvirt.yml)
+
+# VM name (required, passed from playbook/tasks)
+vm_name: ""
+
+# Maximum wait time for IP (seconds)
+max_wait_ip: 30
+
+# OS variant for virt-install
+os_variant: "rocky9-unknown"
+
+# Use transient VM (doesn't survive reboot)
+vm_transient: true
+
+# Return variable name for VM IP
+vm_ip_var: "provisioned_vm_ip"