Add vars support to ansible watches

[Jamstah]

Feature Request

With ansible watches, you can specify a playbook or role, but cannot also specify vars. With the finalizer, you can also specify vars.

In my case, I am creating a number of CRDs with a similar function, it would be good to run them through the same playbook but with different vars. If I could specify the vars in the watch, it would make it really easy. Instead, I will have to use separate playbooks for each CRD that each call the same roles.

Example watches.yaml if vars were supported:

---
- version: v1alpha1
  group: example.com
  kind: ManagedNamespace1
  playbook: /opt/ansible/namespace.yml
  vars:
    kind: one
  watchClusterScopedResources: True
  finalizer:
    name: finalizer.example.com
    playbook: /opt/ansible/destroy.yml
- version: v1alpha1
  group: example.com
  kind: ManagedNamespace2
  playbook: /opt/ansible/namespace.yml
  vars:
    kind: two
  watchClusterScopedResources: True
  finalizer:
    name: finalizer.example.com
    playbook: /opt/ansible/destroy.yml