integration/targets/ios_* work to support IOS (#20414)

* WIP

* Don't set connection: network_cli in the playbook

* ios_config tests now passing

* Create test loopback device

* delete

* ios_* pass (apart from ios_facts)

* Remove provider lines

test/integration/targets/ios_command/tests/cli/invalid.yaml

@@ -3,8 +3,7 @@
 
 - name: run invalid command
   ios_command:
-    commands: ['show foo']
-    provider: "{{ cli }}"
+    commands: show foo
   register: result
   ignore_errors: yes
 
@@ -17,7 +16,6 @@
     commands:
       - show version
       - show foo
-    provider: "{{ cli }}"
   register: result
   ignore_errors: yes