Az mod keyvault key (#33607)

* key module init

* Create/Delete pass sanity

* Integration tests passed

* Added check_mode

* Updated to support tags

* updated key tests

* fixed sanity

* added things that went missing during rebase

* fixed sanity

* fixed doc

* fix copyright

test/integration/targets/azure_rm_keyvaultkey/aliases

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

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

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+dependencies:
+  - setup_azure

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

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+- name: Prepare random number
+  set_fact:
+    rpfx: "{{ resource_group | hash('md5') | truncate(7, True, '') }}{{ 1000 | random }}"
+  run_once: yes
+
+- name: Create instance of Key Vault
+  azure_rm_keyvault:
+    resource_group: "{{ resource_group }}"
+    vault_name: "vault{{ rpfx }}"
+    enabled_for_deployment: yes
+    vault_tenant: "{{ azure_tenant }}"
+    sku:
+      name: standard
+      family: A
+    access_policies:
+      - tenant_id: "{{ azure_tenant }}"
+        object_id: 97567bfa-cf13-4217-8fa3-cc56bc1867fe
+        keys:
+          - get
+          - list
+          - update
+          - create
+          - import
+          - delete
+          - recover
+          - backup
+          - restore
+        secrets:
+          - get
+          - list
+          - set
+          - delete
+          - recover
+          - backup
+          - restore
+  register: output
+
+- name: create a kevyault key
+  block:
+    - azure_rm_keyvaultkey:
+        keyvault_uri: https://vault{{ rpfx }}.vault.azure.net
+        key_name: testkey
+        tags:
+          testing: test
+          delete: on-exit
+      register: output
+    - assert:
+        that: output.changed
+  rescue:
+    - azure_rm_keyvaultkey:
+        keyvault_uri: https://vault{{ rpfx }}.vault.azure.net
+        state: absent
+        key_name: testkey
+
+- name: delete a kevyault key
+  azure_rm_keyvaultkey:
+    keyvault_uri: https://vault{{ rpfx }}.vault.azure.net
+    state: absent
+    key_name: testkey
+  register: output
+
+- assert:
+    that: output.changed
+
+- name: Delete instance of Key Vault
+  azure_rm_keyvault:
+    resource_group: "{{ resource_group }}"
+    vault_name: "vault{{ rpfx }}"
+    state: absent