new facts module for dns zone (#28803)

* new facts module for dns zone

integration tests and new module for dns zone facts

* use vairable for domain name

* add nondeterministic piece to domain name

* fix azure_rm_dnszone_facts examples

test/integration/targets/azure_rm_dnszone_facts/aliases

@@ -0,0 +1,3 @@
+cloud/azure
+posix/ci/cloud/azure
+destructive

test/integration/targets/azure_rm_dnszone_facts/meta/main.yml

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+dependencies:
+  - setup_azure

test/integration/targets/azure_rm_dnszone_facts/tasks/main.yml

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+- name: Create random domain name
+  set_fact:
+    domain_name: "{{ resource_group | hash('md5') | truncate(16, True, '') + (65535 | random | string) }}"
+
+- name: Create a DNS zone
+  azure_rm_dnszone:
+    resource_group: "{{ resource_group }}"
+    name: "{{ domain_name }}.com"
+    state: present
+    tags:
+      tag1: tag1
+  register: results
+
+- name: Assert DNS Zone was created
+  assert:
+    that: results.changed
+
+- name: Retrieve DNS Zone Facts
+  azure_rm_dnszone_facts:
+    resource_group: "{{ resource_group }}"
+    name: "{{ domain_name }}.com"
+  register: results
+
+- name: Assert that facts module returned result
+  assert:
+    that: 
+      - not results.changed
+      - results.ansible_facts.azure_dnszones[0].tags.tag1 == 'tag1'
+
+- name: Delete DNS zone
+  azure_rm_dnszone:
+    resource_group: "{{ resource_group }}"
+    name: "{{ domain_name }}.com"
+    state: absent