IOS-XR NetConf and Cliconf plugin work (#33332)

*  - Netconf plugin addition for iosxr
 - Utilities refactoring to support netconf and cliconf
 - iosx_banner refactoring for netconf and cliconf
 - Integration testcases changes to accomodate above changes

* Fix sanity failures, shippable errors and review comments

* fix pep8 issue

* changes run_command method to send specific command args

* - Review comment fixes
- iosxr_command changes to remove ComplexDict based command_spec

* - Move namespaces removal method from utils to netconf plugin

* Minor refactoring in utils and change in deprecation message

* rewrite build_xml logic and import changes for new utils dir structure

* - Review comment changes and minor changes to documentation

* * refactor common code and docs updates

test/integration/targets/iosxr_interface/tests/cli/intent.yaml

@@ -7,6 +7,7 @@
     description: test_interface_1
     enabled: True
     state: present
+    provider: "{{ cli }}"
   register: result
 
 - name: Check intent arguments
@@ -14,6 +15,7 @@
     name: GigabitEthernet0/0/0/1
     state: up
     delay: 20
+    provider: "{{ cli }}"
   register: result
 
 - assert:
@@ -24,6 +26,7 @@
   iosxr_interface:
     name: GigabitEthernet0/0/0/1
     state: down
+    provider: "{{ cli }}"
   ignore_errors: yes
   register: result
 
@@ -38,6 +41,7 @@
     enabled: False
     state: down
     delay: 20
+    provider: "{{ cli }}"
   register: result
 
 - assert:
@@ -49,6 +53,7 @@
     name: GigabitEthernet0/0/0/1
     enabled: False
     state: up
+    provider: "{{ cli }}"
   ignore_errors: yes
   register: result
 
@@ -64,6 +69,7 @@
       enabled: True
       state: up
       delay: 20
+    provider: "{{ cli }}"
   ignore_errors: yes
   register: result