retire shade in favor of openstacksdk for openstack modules (#40532)

* Establish connection through openstacksdk
* Switch from shade to openstacksdk
* fix typo in link to openstacksdk
* remove nova_client usage
* further remove of min_version from openstack modules

lib/ansible/modules/cloud/openstack/os_router.py

@@ -72,7 +72,7 @@ options:
    availability_zone:
      description:
        - Ignored. Present for backwards compatibility
-requirements: ["shade"]
+requirements: ["openstacksdk"]
 '''
 
 EXAMPLES = '''
@@ -383,11 +383,6 @@ def main():
                            supports_check_mode=True,
                            **module_kwargs)
 
-    if module.params['project']:
-        min_version = '1.10.0'
-    else:
-        min_version = None
-
     state = module.params['state']
     name = module.params['name']
     network = module.params['network']
@@ -396,7 +391,7 @@ def main():
     if module.params['external_fixed_ips'] and not network:
         module.fail_json(msg='network is required when supplying external_fixed_ips')
 
-    shade, cloud = openstack_cloud_from_module(module, min_version=min_version)
+    sdk, cloud = openstack_cloud_from_module(module)
     try:
         if project is not None:
             proj = cloud.get_project(project)
@@ -482,7 +477,7 @@ def main():
                 cloud.delete_router(router_id)
                 module.exit_json(changed=True)
 
-    except shade.OpenStackCloudException as e:
+    except sdk.exceptions.OpenStackCloudException as e:
         module.fail_json(msg=str(e))