[Feature] Support for additional data disks for Single Machine Cluster

**Feature Request:**

Support for Data Disks (VDHX) for Single Machines Cluster that is using local storage by providing a capability to configure one or more datadisks (size, location) in the cluster config so that additional disk are added to the AKS EE Maniner VM and/or AKS EE Windows VM. The rationale is to be able segregate the data from the OS disk and to be able to use different storage classes (tiering).

Example configuration:

```json
"Machines": [
{
"LinuxNode": {
"CpuCount": 8,
"MemoryInMB": 32768,
"DataSizeInGB": 100,
"TimeoutSeconds": 300,
"TpmPassthrough": true,
"AdditionalDataDisks":"[
{
"DataDiskName": "performance"
"DataSizeInGB": 100,
"DataDiskPath": "D:\"
},
{
"DataDiskName": "standard"
"DataSizeInGB": 500,
"DataDiskPath": "E:\"
},
{
"DataDiskName": "archive"
"DataSizeInGB": 500,
"DataDiskPath": "F:\"
}
],
"SecondaryNetworks": [
{
"VMSwitchName": null,
"Ip4Address": null,
"Ip4GatewayAddress": null,
"Ip4PrefixLength": null
}
]
}
}
```

When the "DataDiskPath" is not provided it should use the `INSTALLDIR` and `VHDXDIR` that are used during installation (default, location `C:\Program Files\AksEdge`)

(optional) - The CBL-Maniner VM could mount and initialize the additional disks with a Physical Volume (pvcreate ) and a new Volume Group should be created (vgcreate). From here the user is then responsible to configure their Storage Provider and classes (similar process would apply on the Windows VM).