Ctrl+C on a `dnx`-invoked tool shows an unescapable Windows Batch termination dialog

### Is your feature request related to a problem? Please describe.
We invoke .exe in multi-RID packages by wrapping them in a batch script, but that means when you Ctrl+c to terminate the command, you get the following output all the time:

```cmd
Terminate batch job (Y/N)
```

That's very unattractive.

### Describe the solution you'd like
We should have a way to invoke the tools that doesn't clutter the terminal.