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_facts/tests/cli/all_facts.yaml

@@ -6,6 +6,7 @@
   iosxr_facts:
     gather_subset:
       - all
+    provider: "{{ cli }}"
   register: result
 
 

test/integration/targets/iosxr_facts/tests/cli/default_facts.yaml

@@ -4,6 +4,7 @@
 
 - name: test getting default facts
   iosxr_facts:
+    provider: "{{ cli }}"
   register: result
 
 - assert:

test/integration/targets/iosxr_facts/tests/cli/invalid_subset.yaml

@@ -6,6 +6,7 @@
   iosxr_facts:
     gather_subset:
       - "foobar"
+    provider: "{{ cli }}"
   register: result
   ignore_errors: true
 
@@ -28,6 +29,7 @@
     gather_subset:
       - "!hardware"
       - "hardware"
+    provider: "{{ cli }}"
   register: result
   ignore_errors: true
 

test/integration/targets/iosxr_facts/tests/cli/not_hardware.yaml

@@ -6,6 +6,7 @@
   iosxr_facts:
     gather_subset:
       - "!hardware"
+    provider: "{{ cli }}"
   register: result
 
 - assert: