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##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Each VM instance in an Azure VM Scale Set (VMSS) has a computer name (hostname) which is distinct from the instance name. Currently azure_rm_virtualmachinescalesetinstance_facts returns the instance name but not the computer name. It would be extremely helpful if the module can return the computer name as well.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
azure_rm_virtualmachinescalesetinstance_facts

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
We are using this module in [Muchos](https://github.com/apache/fluo-muchos). If azure_rm_virtualmachinescalesetinstance_facts returned the computer name as well, it would help us populate etc/hosts and other related files much more seamlessly.
contains:
        id:
            description:
                - Resource ID.
            returned: always
            type: str
            sample: "/subscriptions/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/resourceGroups/myResourceGroup/providers/Microsoft.Compute/virtualMachineScaleSets/my
                     VMSS/virtualMachines/2"
        tags:
            description:
                - Resource tags.
            returned: always
            type: dict
            sample: { 'tag1': 'abc' }
        instance_id:
            description:
                - Virtual Machine instance ID.
            returned: always
            type: str
            sample: 0
        name:
            description:
                - Virtual Machine name.
            returned: always
            type: str
            sample: myVMSS_2
        latest_model:
            description:
                - Whether applied latest model.
            returned: always