Azure Availability Set facts module (azure_rm_availabilityset_facts) (#28378)

* Adding facts module and Int. Tests

* register results

* Upgrading metadata version

* Updating author handle

To use Github handle

test/integration/targets/azure_rm_availabilityset_facts/aliases

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

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

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+dependencies:
+  - setup_azure

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

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+- name: Create an availability set
+  azure_rm_availabilityset:
+    name: myavailabilityset1
+    resource_group: "{{ resource_group }}"
+    platform_update_domain_count: 5
+    platform_fault_domain_count: 2
+    sku: Classic
+    tags:
+      tag1: testtag
+
+- name: Get facts for created availability set
+  azure_rm_availabilityset_facts:
+    name: myavailabilityset1
+    resource_group: "{{ resource_group }}"
+  register: results
+
+- assert:
+    that: 
+      - not results.changed
+      - not results.failed
+      - results.ansible_facts.azure_availabilitysets[0].properties.platformFaultDomainCount == 2
+      - results.ansible_facts.azure_availabilitysets[0].properties.platformUpdateDomainCount == 5
+      - results.ansible_facts.azure_availabilitysets[0].sku == 'Classic'
+
+- name: Delete the availability set
+  azure_rm_availabilityset:
+    name: myavailabilityset1
+    resource_group: "{{ resource_group }}"
+    state: absent