Add Access Application creation support

[Maciej-Sitarz-IBM]

Cloudflare API reference for Access Application creation:
https://api.cloudflare.com/#access-applications-create-access-application

Example Cloudflare API call to create Access Application:

curl --request POST \
  --url https://api.cloudflare.com/client/v4/accounts/ACCOUNT_ID/access/apps \
  --header 'Authorization: Bearer BEARER_TOKEN' \
  --header 'Content-Type: application/json' \
  --data '{
	"name": "ACCESS_APP_NAME",
	"logo_url": "",
	"allowed_idps": [],
	"auto_redirect_to_identity": false,
	"service_auth_401_redirect": false,
	"policies": [
		{
			"decision": "non_identity",
			"name": "POLICY_NAME",
			"include": [
				{
					"service_token": {
						"token_id": "SERVICE_TOKEN_ID"
					}
				}
			],
			"exclude": [],
			"require": [],
			"precedence": 1
		}
	],
	"session_duration": "24h",
	"app_launcher_visible": true,
	"app_groups": [],
	"selected_app_groups": [],
	"is_zt_ssh_app": false,
	"domain": "ZONE_FQDN"
}'

[robinbraemer]

pull requests are always welcomed