Add support for Azure 2.0.0 (#27920)

* Adapt azure_rm_resource_group to azure 2.0.0 + azure Cli support

* Fix exceptions in Azure ARM plugins

* update azure_rm_networkinterface documention to reflect required params

* change state param to not required for docs in azure_rm_subnet

* fix import to reflect azure==2.0.0 changes

* add aliases and fix docs for azure_rm_storageblob

* add resource_group_name alias to azure_rm_storageaccount_facts

* fix import bug due to change in azure==2.0.0

* fix args bug and enum modules issue

* update docs to reflect azure==2.0.0

* pin management clients to a specific api_version

* update docs to reflect the new azure-ansible-base python package

* add fallback for older api resource group listing

* rework azure dependencies installation

* refactor path joining to a cross-plat solution

docs/docsite/rst/guide_azure.rst

@@ -7,14 +7,19 @@ and orchestrate infrastructure on the Microsoft Azure Cloud.
 Requirements
 ------------
 
-Using the Azure Resource Manager modules requires having `Azure Python SDK <https://github.com/Azure/azure-sdk-for-python>`_
-installed on the host running Ansible. You will need to have == v2.0.0RC5 installed. The simplest way to install the
-SDK is via pip:
+Using the Azure Resource Manager modules requires having specific Azure SDK modules
+installed on the host running Ansible.
 
 .. code-block:: bash
 
-    $ pip install "azure==2.0.0rc5"
+    $ pip install ansible[azure]
 
+If you are running Ansible from source, you can install the dependencies from the
+root directory of the Ansible repo.
+
+.. code-block:: bash
+
+    $ pip install .[azure]
 
 Authenticating with Azure
 -------------------------