refactor: replace verbose flag with Ansible verbosity (-v) flag

- Remove custom 'verbose' parameter from module
- Use Ansible's built-in verbosity setting (module._verbosity)
- Verbose output now shown with -v, -vv, -vvv flags
- Add notes to DOCUMENTATION explaining -v flag usage
- Update all examples to remove verbose: true parameter
- Update all documentation to mention -v flag instead
- Simplifies module interface by leveraging Ansible conventions

docs/nsupdate_zone_example.yml

@@ -71,7 +71,6 @@
         ignore_record_patterns:
           - '^_acme-challenge\..*'
           - '^_dnsauth\..*'
-        verbose: true  # Show per-record actions
         zones:
           - name: example.com
             dns_server: ns1.example.com
@@ -99,7 +98,6 @@
         key_name: "{{ dns_key_name }}"
         key_secret: "{{ dns_key_secret }}"
         dns_server: ns1.example.com  # Global server for all zones
-        verbose: true
         zones:
           - name: example.com
             records: