[Question] - Variables

`SqlCmd` allows you to pass variable values that can be used in scripts:

```
& sqlcmd -i CreateDb.sql -v dbName="foo"
```

`CreateDb.sql`:
```
CREATE DATABASE $(dbName)
ON (
  NAME = $(dbName)
)
LOG ON (
  NAME = $(dbName)_log,  
)
```

These are different from SQL parameters. 

Does `Invoke-SqlCmd2` cater for this functionality somehow?
Thanks