[azure_rm_openshiftmanagedcluster] Add support for outbound-type

[Soraph]

SUMMARY

It is not possible to create an ARO cluster with the option --outbound-type using the module azure_rm_openshiftmanagedcluster

ISSUE TYPE

• Feature Idea

COMPONENT NAME

azure.azcollection.azure_rm_openshiftmanagedcluster

ADDITIONAL INFORMATION

A simplified example based on the sample code from the documentation:

- name: Create openshift cluster
  azure_rm_openshiftmanagedcluster:
    resource_group: "myResourceGroup"
    name: "myCluster"
    location: "eastus"
    outbound_type: "UserDefinedRouting" 
    // Or a structure that allow personalization for the other possible
    // types as per microsoft documentation on the matter

    ... 

[Fred-sun]

@Soraph This parameter is not currently supported, even if passed, the service side has not responded. I'll open a ticket to track this issue! Thank you!

[Fred-sun]

@Soraph Added in #1664 , Thanks!